SlideShare a Scribd company logo
Exploring the Co-movements of Tax-to-GDP in
Rwanda: A Wavelet Analysis Approach
Clement Uwizeye
RRA & EPRN
10th EPRN Annual Economic Research Conference, 27-28th June 2024
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
1 / 19
Outlines
Motivation
Purposes
Survey from Literature Review
Empirical model
Data Description
Results
Robustness & Sensitivity Analysis
Discussion on Results
Conclusions
Policy recommendations
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
2 / 19
Motivation
Tax-to-GDP ratio is a key indicator of a country’s fiscal health.
Understanding co-movements between tax to GDP can inform
economic policies.
Does high government spending leads high tax to GDP?
Does industry and service as potential indicators to GDP lead higher
tax to GDP?
How resilient in tax policies from high currency depreciation and
inflation?
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
3 / 19
Purposes
To investigate the co-movements between tax to GDP in Rwanda.
To utilize wavelet analysis to uncover patterns and relationships over
time.
To provide policy recommendations based on the results.
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
4 / 19

Recommended for you

B470915.pdf
B470915.pdfB470915.pdf
B470915.pdf

American Research Journal of Humanities & Social Science (ARJHSS) is a double blind peer reviewed, open access journal published by (ARJHSS).

https://www.arjhss.com/
Measurement and Analysis of the Stability of Local Fiscal Revenue
Measurement and Analysis of the Stability of Local Fiscal RevenueMeasurement and Analysis of the Stability of Local Fiscal Revenue
Measurement and Analysis of the Stability of Local Fiscal Revenue

The stability of fiscal revenue, so called the fluctuation of fiscal revenue, refers to the fluctuation degree of local government's actual fiscal revenue deviating from the expected fiscal revenue. As the main way of funds for local governments to perform public service functions, fiscal revenue is an important starting point for local governments to regulate and participate in economic activities. The drastic fluctuation of fiscal revenue will interfere with the government's economic functions, reduce the quantity and quality of public services, and produce inefficient government activities. The economic and social activities carried out by governments at all levels in practice are numerous and complicated, which can be classified according to different purposes and perspectives. However, no matter which classification method is adopted, stable financial revenue is the core guarantee of government economic activities, which is in the position of "leading the development and affecting the whole body". Based on the combination variance method of white (1983), this paper constructs the stability index of local fiscal revenue, and measures the stability of fiscal revenue of all provinces in China, and interprets and analyzes the measurement results through the theoretical method of economics. It is found that there are significant regional differences in the fluctuation of local fiscal revenue in China. By comparing the changes of fiscal revenue fluctuation index in 2000, 2009 and 2018, the fluctuation index of fiscal revenue shows obvious regional differences. The fluctuation degree of the economically developed eastern coastal area is lower than that of the underdeveloped central and Western Region, and the southern region with lower economic activity is significantly lower than that of the north. On the other hand, the external shocks such as "replacing business tax with value-added tax" and financial crisis also have a positive impact on local tax fluctuations. Through the analysis of the experimental results, it is found that good economic foundation, capital accumulation, industrial structure and geographical location have a great impact on financial stability. Therefore, the government should pay attention to the gap between the stability of fiscal revenue in different regions, actively improve the economic foundation of the poor stability of the central and western regions, formulate differentiated economic and financial policies, vigorously develop the secondary and tertiary industries, and improve the stability of fiscal revenue to cope with regional economic risks and improve the administrative efficiency of the government.

financial revenue stability re
Etude PwC sur les pratiques comptables des Etats (2013)
Etude PwC sur les pratiques comptables des Etats (2013)Etude PwC sur les pratiques comptables des Etats (2013)
Etude PwC sur les pratiques comptables des Etats (2013)

http://pwc.to/13zcNvl Face au contexte de crise économique dans les pays industrialisés et à la nécessité d’accompagner le développement économique des pays émergents, la maîtrise des dépenses et des recettes publiques devient un enjeu majeur pour les Etats partout dans le monde. L’accès au financement (et la compétition entre pays) est au cœur de l’actualité. Pour répondre à ces évolutions, les gouvernements prennent de plus en plus de mesures pour améliorer la comptabilité de l’Etat et renforcer son niveau de transparence.

pwc franceexercicegouvernements
Survey from Literature Review-trends
Dahal (2020), As GDP increases, economic activity expands, leading
to higher income levels and consumption, which in turn broadens the
tax base and enhances tax revenues.
Nguyen and Darsono (2022), higher government spending may
necessitate increased tax rates or more effective tax collection
mechanisms
QadirPatoli et al. (2012), High inflation erodes the real value of
tax revenues and reduces the purchasing power of consumers,
potentially shrinking the tax base
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
5 / 19
Survey from Literature Review-Wavelet coherence
Rua (2010) employed wavelet analysis to examine the co-movements
between GDP and unemployment rates, revealing significant
time-varying patterns that traditional econometric methods might
overlook.
Aguiar-Conraria and Soares (2011) used wavelet coherence to
study the synchronization of economic cycles between countries,
demonstrating the utility of wavelet analysis in capturing complex
economic dynamics
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
6 / 19
Empirical model
Descriptive analysis using Trend
Wavelet Coherence Analysis: This method is effective for
understanding how the correlation between the two variables evolves
over time and across different frequencies
Time-Frequency Domain Exploration: This allows for the
detection of both the period and duration of significant relationships
between the series, making it exceptionally useful for economic data
that exhibits cyclical (co-movement) patterns.
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
7 / 19
Empirical model
Mathematical Foundation: The mathematical basis of wavelet
coherence includes transforming the time series data using wavelets,
which are mathematical functions that can localize data in time and
scale (frequency)
This process helps in identifying the periods during which the tax
streams and GDP are most aligned.
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
8 / 19

Recommended for you

Etude PwC/Banque mondiale "Paying taxes 2014"
Etude PwC/Banque mondiale "Paying taxes 2014"Etude PwC/Banque mondiale "Paying taxes 2014"
Etude PwC/Banque mondiale "Paying taxes 2014"

The document discusses the ninth edition of the Paying Taxes study published by the World Bank and PwC, which analyzes and compares tax systems in 189 economies based on the taxes paid by a standardized case study company. The study measures the total tax rate borne by the company, the time needed to comply with major taxes, and number of tax payments, in order to evaluate the cost and administrative burden of different tax systems. The analysis aims to provide data to benchmark tax systems, identify reforms, and inform tax policy development.

pwcpwc franceentreprises
Adaption of E-Filling of Income Tax Returns in Kurdistan
Adaption of E-Filling of Income Tax Returns in KurdistanAdaption of E-Filling of Income Tax Returns in Kurdistan
Adaption of E-Filling of Income Tax Returns in Kurdistan

The study aimed to examine factors influencing E-filling in Kurdistan region of Iraq. To measure the current study, the researchers used three factors (perception, awareness, and quality) as independent variables and E-filling as dependent variable. A quantitative technique applied in order to analyze the current study. Sample design refers to the procedure or method the researcher is willing to accept in choosing items for the sample. Research sample was selected using a procedure of random sampling and it was carried out in different banks. A total of 120 questionnaires were distributed, however 109 participants properly filled out the questionnaires. The results of the study revealed that low levels of computer literacy have a substantial impact on the compliance levels of government organizations. The research determined that in the context of security, the danger of tax noncompliance did not have a major effect on the degree of compliance among the various Iraqi government institutions in the Kurdistan area. The extension or upgrade would be sure to assist in better understanding the determining factor for electronic filing acceptability. Moreover, government agencies, government policy makers, and system designers could also profit from a management policy such as policy makers and agencies. Because of this, the theory and discussion on the subject would provide factual support for the reasons behind why this technology was difficult to adopt. The results show that awareness influences E-as an influential factor significantly and positively E-filling at 5% level. The results show that quality influences E-as an influential factor significantly and positively E-filling at 5% level. The results show that E-filling E-as an influential factor influences significantly and positively E-filling at 5% level. Moreover, all beta value is higher than .001. All models have very high adjusted R2 (0.693, 0.621, 0.712, and 0.763 respectively) indicating the ability of the models explaining the variation of E-filling due to variation of independent variables is very high. The F-value shows that the explanatory variables are jointly statistically significant in the model and the Durbin-Watson (DW) statistics reveals that there is autocorrelation in the models.

income taxtaxatione-filling
Day2 sp4 pres-washington_elettore_en
Day2 sp4 pres-washington_elettore_enDay2 sp4 pres-washington_elettore_en
Day2 sp4 pres-washington_elettore_en

The document summarizes the fiscal policies and transparency initiatives of the Cordoba Province government in Argentina. It discusses efforts to improve transparency through legal reforms, quality management systems, and new technologies. Key policies and programs include joining the Fiscal Responsibility Regime in 2004, passing the Financial Administration Law in 2003, creating regulatory compendiums, and adopting Resolution 364/09 to establish transparency policies. The province also publishes information through its transparency portal, citizen budget, audits, and sustainability reports to encourage public participation in fiscal management.

day2 sp4 pres-washington_elettore_en
Data Description
Table: Summary of Data Used in the Analysis
Variables Data Span Source
Nominal GDP 2008-2023 Monthly NISR
Real GDP 2008-2023 Monthly NISR
Inflation Rate 2008-2023 Monthly MINECOFIN
Interest Rate 2008-2023 Monthly NBR
Industry Value Added 2008-2023 Monthly NISR
Service Value Added 2008-2023 Monthly NISR
Revenue (Use for Tax to GDP) 2008-2023 Monthly MINECOFIN
Depreciation 2008-2023 Monthly NISR
(1) The Quarterly & Annual data converted into monthly for Wavelet analysis.
(2) In trend analysis, the aggregated data from 2009 to 2023 annual used.
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
9 / 19
Results-Trend analysis
Figure: Trend analysis of tax to GDP with some economic indicators
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
10 / 19
Results-Wavelet Coherence
Figure: WC-TaxGDP vs NGDP Figure: WC-TaxGDP vs Government
Figure: WC-TaxGDP vs Industry Figure: WC-TaxGDP vs Service
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
11 / 19
Results-Wavelet Coherence
Figure: WC-TaxGDP vs RGDP Figure: WC-TaxGDP vs Inflation
Figure: WC-TaxGDP vs Interest Figure: WC-TaxGDP vs Depreciation
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
12 / 19

Recommended for you

The Perception of Tax Fairness and Personal Income Tax Compliance of Smes in ...
The Perception of Tax Fairness and Personal Income Tax Compliance of Smes in ...The Perception of Tax Fairness and Personal Income Tax Compliance of Smes in ...
The Perception of Tax Fairness and Personal Income Tax Compliance of Smes in ...

ABSTRACT: The Study investigated the relationship between the perception of tax fairness and personal income tax compliance in Rivers State. The main objective of this study was to establish the relationship between the perception of tax fairness and personal income tax fairness in Rivers State. The survey design was adopted for this study. Yamane formula was used to draw the sample size of the study. Out of the 7865 registered SMEs taxpayers, 380 formed the sample for this study. The hypotheses were tested using Spearman Correlation Coefficient and Multiple Regression Analysis. The results show that distributive fairness, procedural fairness, retributive fairness and the perception of tax fairness have positive significant influence on personal income tax compliance in Rivers State. It is recommended that there should be increase in the provision of social goods and services to stimulate the level of personal income tax compliance. Finally, the researcher recommended that tax officers should apply minimal level of punishment on tax defaulters for effective tax enforcement and tax administration.

Impact of Tax Reforms on the Liquidity of Nigerian Stock Market (1982-2021) |...
Impact of Tax Reforms on the Liquidity of Nigerian Stock Market (1982-2021) |...Impact of Tax Reforms on the Liquidity of Nigerian Stock Market (1982-2021) |...
Impact of Tax Reforms on the Liquidity of Nigerian Stock Market (1982-2021) |...

This study examined the impact of tax reforms on the liquidity of Nigerian stock market. Secondary data were used for this study. The relevant data were sourced from Securities and Exchange Commission Statistics and Federal Inland Revenue Service Statistics Report between 1982 and 2021. Vector Auto Regressive (VAR) Model comprising Impulse Response Function (IRF) and Variance Decomposition (VD) was used to analyze the determinants and the liquidity of the stock market. The results of the VAR Model showed that the stock market liquidity (proxied by turnover ratio) significantly responded to changes in the movement of the tax reform indicators and positive both in the short and long run. This study concluded that a positive relationship exists between tax reforms and stock market liquidity. It was recommended that the regulatory body of tax administration must intensify efforts to mitigate the impacts of the global financial crisis on the Nigerian Exchange Group.| Publisher: International Journal of Research and Innovation in Social Science (IJRISS)

ijrisstax reformsstock market liquidity
An investigation of the effect of vat on revenue profiles of south western ni...
An investigation of the effect of vat on revenue profiles of south western ni...An investigation of the effect of vat on revenue profiles of south western ni...
An investigation of the effect of vat on revenue profiles of south western ni...

This document summarizes a study that examined the effect of Value Added Tax (VAT) on the revenue profiles of state governments in Southwestern Nigeria from 2002 to 2011. The study used secondary data from approved budgets of five states. Panel regression analysis found that VAT had a positive and significant relationship with state revenues. The study concluded that increasing consumption through poverty alleviation could increase VAT revenues for states by boosting the goods and services subject to VAT.

Robustness & Sensitivity Analysis
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
13 / 19
Robustness & Sensitivity Analysis
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
14 / 19
Discussion on Results
From 2021, Increase of industry value added, Government spendimg
are accompanied by decline in taxGDP
There is high currency depreciation which lead to economic instability
accompanied by decline in taxGDP
Using Wavelet coherence:
There is strong correlations between tax policies and nominal
economic growth during 2008-2010 & 2016-2020
There is strong correlations during 2008-2010 and 2019-2022,
indicating significant alignment between tax policies and inflation
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
15 / 19
Discussion on Results
There is strong correlations in short to medium-term alignments
between tax policies and industry performance.
Overall, the strong correlations observed in short term at some points
in period, showing inefficiency tax policy for sustainable economy
The paper contribute to the literature by Enhancing focus on
counter-cyclical fiscal policies.
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
16 / 19

Recommended for you

Assessing the Effects of Tax Elasticity on Government Spending
Assessing the Effects of Tax Elasticity on Government SpendingAssessing the Effects of Tax Elasticity on Government Spending
Assessing the Effects of Tax Elasticity on Government Spending

This paper assesses the effects of Tax elasticity on Government Spending state wise from 2001-2010 for five major states in terms of population. OLS Regression model is used where the relationships are assumed to be linear. The variables used in the regression model are: Gt = the government spending at the state level, the dependent variable Yt = the Gross Domestic Product (GDP) of the state Ct = the central assistance to the state , Et = the elasticity variable, The subscript ‘t’ refers to the corresponding year of analysis and b0, b1, b2, b3, b4, b5 are regression coefficients. In most of the cases, elasticity bore a positive and significant relation to the level of government spending except in the case of Bihar, where the coefficient was negative and insignificant.

tax elasticitytax revenuegovt. expenditure
Composition of ethiopian domestic revenues and tax buoyancies (1975 2013)
Composition of ethiopian domestic revenues and tax buoyancies (1975 2013)Composition of ethiopian domestic revenues and tax buoyancies (1975 2013)
Composition of ethiopian domestic revenues and tax buoyancies (1975 2013)

This document analyzes the composition and trends of Ethiopian domestic revenues from 1975-2013. It finds that total domestic revenues as a percentage of GDP have increased under the EPRDF government compared to the Derg regime, reaching a high of 17.13% in 2004/05. However, domestic revenues also experienced high volatility, declining sharply at times. Tax revenues are the largest component and have historically been inelastic. Indirect taxes, especially foreign trade taxes, account for the majority of tax revenues. The study aims to examine tax buoyancies under the two governments to better understand domestic resource mobilization challenges in Ethiopia.

technology and medicine journals call for academictechnology and education (iiste). sciencethe international institute for science
Effect of E Taxation on Revenue Generation in Anambra State
Effect of E Taxation on Revenue Generation in Anambra StateEffect of E Taxation on Revenue Generation in Anambra State
Effect of E Taxation on Revenue Generation in Anambra State

This study assessed the effect of e taxation on revenue generation in Anambra state. Specifically, the study intends to examine the effect of e taxation on tax revenue generation in Anambra state determine whether the adoption of e taxation has reduced tax malpractice in Anambra state and ascertain the tax revenue improved based on the e taxation adoption in Anambra state. Survey design was employed. Data collected were analyzed and one sample t test was used to test the formulated hypotheses. The study found that E taxation has effect on tax revenue generation in Anambra state and adoption of e taxation has reduced tax malpractice in Anambra state. Another finding is that tax revenue has improved based on the adoption of e taxation in Anambra state. Based on this, the researchers recommended among others that well equipped database on tax payers should be established by the governments with the aim of identifying all possible sources of income of tax payers for tax purpose. John-Akamelu Chitom R. | Iyidiobi Felicia C. ""Effect of E-Taxation on Revenue Generation in Anambra State"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23520.pdf Paper URL: https://www.ijtsrd.com/management/accounting-and-finance/23520/effect-of-e-taxation-on-revenue-generation-in-anambra-state/john-akamelu-chitom-r

accounting and financee-taxationrevenue generation and tax malpractice
Conclusions
The high coherence with interest rates, inflation, and other variables
highlight times of strong policy alignment
The low coherence suggest areas where tax policies and economic
performance were less coordinated
This comprehensive analysis provides a foundation for refining and
enhancing tax policies to support sustainable economic growth
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
17 / 19
Policy recommendations
Understand the successful elements and replicate them in current and
future policies.
Focus on refining and sustaining these strategies to ensure continued
economic stability and growth
Explore alternative strategies and enhance coordination between tax
policies and economic variables to strengthen these relationships
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
18 / 19
Comments & Suggestions
Any contribution to the paper?
ORCiD: https://orcid.org/0000-0003-1459-3196
Google Scholar: https://bit.ly/ClementResearcherRRA
Thank you for your attention.
Murakoze!
Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach
10th EPRN Annual Economic Research Con
19 / 19

More Related Content

Similar to Exploring the co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach

wb_experience_and_advice_for_conducting_expenditure_reviews_ivor_beazley_eng....
wb_experience_and_advice_for_conducting_expenditure_reviews_ivor_beazley_eng....wb_experience_and_advice_for_conducting_expenditure_reviews_ivor_beazley_eng....
wb_experience_and_advice_for_conducting_expenditure_reviews_ivor_beazley_eng....
majannellegaddi
 
18130-Article Text-70658-2-10-20221201.pdf
18130-Article Text-70658-2-10-20221201.pdf18130-Article Text-70658-2-10-20221201.pdf
18130-Article Text-70658-2-10-20221201.pdf
fikirbrhan
 
Economic growth and wagner’s hypothesis the nigerian experience
Economic growth and wagner’s hypothesis the nigerian experienceEconomic growth and wagner’s hypothesis the nigerian experience
Economic growth and wagner’s hypothesis the nigerian experience
Alexander Decker
 
B470915.pdf
B470915.pdfB470915.pdf
Measurement and Analysis of the Stability of Local Fiscal Revenue
Measurement and Analysis of the Stability of Local Fiscal RevenueMeasurement and Analysis of the Stability of Local Fiscal Revenue
Measurement and Analysis of the Stability of Local Fiscal Revenue
IJAEMSJORNAL
 
Etude PwC sur les pratiques comptables des Etats (2013)
Etude PwC sur les pratiques comptables des Etats (2013)Etude PwC sur les pratiques comptables des Etats (2013)
Etude PwC sur les pratiques comptables des Etats (2013)
PwC France
 
Etude PwC/Banque mondiale "Paying taxes 2014"
Etude PwC/Banque mondiale "Paying taxes 2014"Etude PwC/Banque mondiale "Paying taxes 2014"
Etude PwC/Banque mondiale "Paying taxes 2014"
PwC France
 
Adaption of E-Filling of Income Tax Returns in Kurdistan
Adaption of E-Filling of Income Tax Returns in KurdistanAdaption of E-Filling of Income Tax Returns in Kurdistan
Adaption of E-Filling of Income Tax Returns in Kurdistan
AI Publications
 
Day2 sp4 pres-washington_elettore_en
Day2 sp4 pres-washington_elettore_enDay2 sp4 pres-washington_elettore_en
Day2 sp4 pres-washington_elettore_en
icgfmconference
 
The Perception of Tax Fairness and Personal Income Tax Compliance of Smes in ...
The Perception of Tax Fairness and Personal Income Tax Compliance of Smes in ...The Perception of Tax Fairness and Personal Income Tax Compliance of Smes in ...
The Perception of Tax Fairness and Personal Income Tax Compliance of Smes in ...
QUESTJOURNAL
 
Impact of Tax Reforms on the Liquidity of Nigerian Stock Market (1982-2021) |...
Impact of Tax Reforms on the Liquidity of Nigerian Stock Market (1982-2021) |...Impact of Tax Reforms on the Liquidity of Nigerian Stock Market (1982-2021) |...
Impact of Tax Reforms on the Liquidity of Nigerian Stock Market (1982-2021) |...
International Journal of Research and Innovation in Social Science (IJRISS)
 
An investigation of the effect of vat on revenue profiles of south western ni...
An investigation of the effect of vat on revenue profiles of south western ni...An investigation of the effect of vat on revenue profiles of south western ni...
An investigation of the effect of vat on revenue profiles of south western ni...
Alexander Decker
 
Assessing the Effects of Tax Elasticity on Government Spending
Assessing the Effects of Tax Elasticity on Government SpendingAssessing the Effects of Tax Elasticity on Government Spending
Assessing the Effects of Tax Elasticity on Government Spending
Dr. Amarjeet Singh
 
Composition of ethiopian domestic revenues and tax buoyancies (1975 2013)
Composition of ethiopian domestic revenues and tax buoyancies (1975 2013)Composition of ethiopian domestic revenues and tax buoyancies (1975 2013)
Composition of ethiopian domestic revenues and tax buoyancies (1975 2013)
Alexander Decker
 
Effect of E Taxation on Revenue Generation in Anambra State
Effect of E Taxation on Revenue Generation in Anambra StateEffect of E Taxation on Revenue Generation in Anambra State
Effect of E Taxation on Revenue Generation in Anambra State
ijtsrd
 
IMPACT OF TAX REVENUE ON ECONOMIC GROWTH IN RWANDA FROM 2007-2017.
IMPACT OF TAX REVENUE ON ECONOMIC GROWTH IN RWANDA FROM 2007-2017.IMPACT OF TAX REVENUE ON ECONOMIC GROWTH IN RWANDA FROM 2007-2017.
IMPACT OF TAX REVENUE ON ECONOMIC GROWTH IN RWANDA FROM 2007-2017.
Nzabirinda Etienne
 
The optimal point for fiscal decentralization
The optimal point for fiscal decentralizationThe optimal point for fiscal decentralization
The optimal point for fiscal decentralization
Alexander Decker
 
Governance and Economic Growth in Africa
Governance and Economic Growth in AfricaGovernance and Economic Growth in Africa
Governance and Economic Growth in Africa
International Journal of Economics and Financial Research
 
FACTORS AFFECTING TAX COMPLIANCE AMONG SMALL AND MEDIUM ENTERPRISES IN KITALE...
FACTORS AFFECTING TAX COMPLIANCE AMONG SMALL AND MEDIUM ENTERPRISES IN KITALE...FACTORS AFFECTING TAX COMPLIANCE AMONG SMALL AND MEDIUM ENTERPRISES IN KITALE...
FACTORS AFFECTING TAX COMPLIANCE AMONG SMALL AND MEDIUM ENTERPRISES IN KITALE...
paperpublications3
 
Fiscal Policy
Fiscal PolicyFiscal Policy
Fiscal Policy
Satyajit Chatterjee
 

Similar to Exploring the co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach (20)

wb_experience_and_advice_for_conducting_expenditure_reviews_ivor_beazley_eng....
wb_experience_and_advice_for_conducting_expenditure_reviews_ivor_beazley_eng....wb_experience_and_advice_for_conducting_expenditure_reviews_ivor_beazley_eng....
wb_experience_and_advice_for_conducting_expenditure_reviews_ivor_beazley_eng....
 
18130-Article Text-70658-2-10-20221201.pdf
18130-Article Text-70658-2-10-20221201.pdf18130-Article Text-70658-2-10-20221201.pdf
18130-Article Text-70658-2-10-20221201.pdf
 
Economic growth and wagner’s hypothesis the nigerian experience
Economic growth and wagner’s hypothesis the nigerian experienceEconomic growth and wagner’s hypothesis the nigerian experience
Economic growth and wagner’s hypothesis the nigerian experience
 
B470915.pdf
B470915.pdfB470915.pdf
B470915.pdf
 
Measurement and Analysis of the Stability of Local Fiscal Revenue
Measurement and Analysis of the Stability of Local Fiscal RevenueMeasurement and Analysis of the Stability of Local Fiscal Revenue
Measurement and Analysis of the Stability of Local Fiscal Revenue
 
Etude PwC sur les pratiques comptables des Etats (2013)
Etude PwC sur les pratiques comptables des Etats (2013)Etude PwC sur les pratiques comptables des Etats (2013)
Etude PwC sur les pratiques comptables des Etats (2013)
 
Etude PwC/Banque mondiale "Paying taxes 2014"
Etude PwC/Banque mondiale "Paying taxes 2014"Etude PwC/Banque mondiale "Paying taxes 2014"
Etude PwC/Banque mondiale "Paying taxes 2014"
 
Adaption of E-Filling of Income Tax Returns in Kurdistan
Adaption of E-Filling of Income Tax Returns in KurdistanAdaption of E-Filling of Income Tax Returns in Kurdistan
Adaption of E-Filling of Income Tax Returns in Kurdistan
 
Day2 sp4 pres-washington_elettore_en
Day2 sp4 pres-washington_elettore_enDay2 sp4 pres-washington_elettore_en
Day2 sp4 pres-washington_elettore_en
 
The Perception of Tax Fairness and Personal Income Tax Compliance of Smes in ...
The Perception of Tax Fairness and Personal Income Tax Compliance of Smes in ...The Perception of Tax Fairness and Personal Income Tax Compliance of Smes in ...
The Perception of Tax Fairness and Personal Income Tax Compliance of Smes in ...
 
Impact of Tax Reforms on the Liquidity of Nigerian Stock Market (1982-2021) |...
Impact of Tax Reforms on the Liquidity of Nigerian Stock Market (1982-2021) |...Impact of Tax Reforms on the Liquidity of Nigerian Stock Market (1982-2021) |...
Impact of Tax Reforms on the Liquidity of Nigerian Stock Market (1982-2021) |...
 
An investigation of the effect of vat on revenue profiles of south western ni...
An investigation of the effect of vat on revenue profiles of south western ni...An investigation of the effect of vat on revenue profiles of south western ni...
An investigation of the effect of vat on revenue profiles of south western ni...
 
Assessing the Effects of Tax Elasticity on Government Spending
Assessing the Effects of Tax Elasticity on Government SpendingAssessing the Effects of Tax Elasticity on Government Spending
Assessing the Effects of Tax Elasticity on Government Spending
 
Composition of ethiopian domestic revenues and tax buoyancies (1975 2013)
Composition of ethiopian domestic revenues and tax buoyancies (1975 2013)Composition of ethiopian domestic revenues and tax buoyancies (1975 2013)
Composition of ethiopian domestic revenues and tax buoyancies (1975 2013)
 
Effect of E Taxation on Revenue Generation in Anambra State
Effect of E Taxation on Revenue Generation in Anambra StateEffect of E Taxation on Revenue Generation in Anambra State
Effect of E Taxation on Revenue Generation in Anambra State
 
IMPACT OF TAX REVENUE ON ECONOMIC GROWTH IN RWANDA FROM 2007-2017.
IMPACT OF TAX REVENUE ON ECONOMIC GROWTH IN RWANDA FROM 2007-2017.IMPACT OF TAX REVENUE ON ECONOMIC GROWTH IN RWANDA FROM 2007-2017.
IMPACT OF TAX REVENUE ON ECONOMIC GROWTH IN RWANDA FROM 2007-2017.
 
The optimal point for fiscal decentralization
The optimal point for fiscal decentralizationThe optimal point for fiscal decentralization
The optimal point for fiscal decentralization
 
Governance and Economic Growth in Africa
Governance and Economic Growth in AfricaGovernance and Economic Growth in Africa
Governance and Economic Growth in Africa
 
FACTORS AFFECTING TAX COMPLIANCE AMONG SMALL AND MEDIUM ENTERPRISES IN KITALE...
FACTORS AFFECTING TAX COMPLIANCE AMONG SMALL AND MEDIUM ENTERPRISES IN KITALE...FACTORS AFFECTING TAX COMPLIANCE AMONG SMALL AND MEDIUM ENTERPRISES IN KITALE...
FACTORS AFFECTING TAX COMPLIANCE AMONG SMALL AND MEDIUM ENTERPRISES IN KITALE...
 
Fiscal Policy
Fiscal PolicyFiscal Policy
Fiscal Policy
 

Recently uploaded

NPS_Presentation_V3.pptx it is regarding National pension scheme
NPS_Presentation_V3.pptx it is regarding National pension schemeNPS_Presentation_V3.pptx it is regarding National pension scheme
NPS_Presentation_V3.pptx it is regarding National pension scheme
ASISHSABAT3
 
AIRLINE_SATISFACTION_Data Science Solution on Azure
AIRLINE_SATISFACTION_Data Science Solution on AzureAIRLINE_SATISFACTION_Data Science Solution on Azure
AIRLINE_SATISFACTION_Data Science Solution on Azure
SanelaNikodinoska1
 
iot paper presentation FINAL EDIT by kiran.pptx
iot paper presentation FINAL EDIT by kiran.pptxiot paper presentation FINAL EDIT by kiran.pptx
iot paper presentation FINAL EDIT by kiran.pptx
KiranKumar139571
 
[D3T1S03] Amazon DynamoDB design puzzlers
[D3T1S03] Amazon DynamoDB design puzzlers[D3T1S03] Amazon DynamoDB design puzzlers
[D3T1S03] Amazon DynamoDB design puzzlers
Amazon Web Services Korea
 
Delhi @ℂall @Girls ꧁❤ 9711199012 ❤꧂Glamorous sonam Mehra Top Model Safe
Delhi @ℂall @Girls ꧁❤ 9711199012 ❤꧂Glamorous sonam Mehra Top Model SafeDelhi @ℂall @Girls ꧁❤ 9711199012 ❤꧂Glamorous sonam Mehra Top Model Safe
Delhi @ℂall @Girls ꧁❤ 9711199012 ❤꧂Glamorous sonam Mehra Top Model Safe
dipti singh$A17
 
Lajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Ginni Singh Top Model Safe
Lajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Ginni Singh Top Model SafeLajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Ginni Singh Top Model Safe
Lajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Ginni Singh Top Model Safe
khansayyad1256
 
Lajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Arti Singh Top Model Safe
Lajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Arti Singh Top Model SafeLajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Arti Singh Top Model Safe
Lajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Arti Singh Top Model Safe
aarusi sexy model
 
Sunshine Coast University diploma
Sunshine Coast University diplomaSunshine Coast University diploma
Sunshine Coast University diploma
cwavvyy
 
Victoria University degree offer diploma Transcript
Victoria University  degree offer diploma TranscriptVictoria University  degree offer diploma Transcript
Victoria University degree offer diploma Transcript
taqyea
 
Simon Fraser University degree offer diploma Transcript
Simon Fraser University  degree offer diploma TranscriptSimon Fraser University  degree offer diploma Transcript
Simon Fraser University degree offer diploma Transcript
taqyea
 
Amul goes international: Desi dairy giant to launch fresh ...
Amul goes international: Desi dairy giant to launch fresh ...Amul goes international: Desi dairy giant to launch fresh ...
Amul goes international: Desi dairy giant to launch fresh ...
chetankumar9855
 
Streamlining Legacy Complexity Through Modernization
Streamlining Legacy Complexity Through ModernizationStreamlining Legacy Complexity Through Modernization
Streamlining Legacy Complexity Through Modernization
sanjay singh
 
University of the Sunshine Coast degree offer diploma Transcript
University of the Sunshine Coast  degree offer diploma TranscriptUniversity of the Sunshine Coast  degree offer diploma Transcript
University of the Sunshine Coast degree offer diploma Transcript
taqyea
 
Laxmi Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Yogita Mehra Top Model Safe
Laxmi Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Yogita Mehra Top Model SafeLaxmi Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Yogita Mehra Top Model Safe
Laxmi Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Yogita Mehra Top Model Safe
yogita singh$A17
 
Cómo hemos implementado semántica de "Exactly Once" en nuestra base de datos ...
Cómo hemos implementado semántica de "Exactly Once" en nuestra base de datos ...Cómo hemos implementado semántica de "Exactly Once" en nuestra base de datos ...
Cómo hemos implementado semántica de "Exactly Once" en nuestra base de datos ...
javier ramirez
 
Rohini @ℂall @Girls ꧁❤ 9873940964 ❤꧂VIP Megha Singla Top Model Safe
Rohini @ℂall @Girls ꧁❤ 9873940964 ❤꧂VIP Megha Singla Top Model SafeRohini @ℂall @Girls ꧁❤ 9873940964 ❤꧂VIP Megha Singla Top Model Safe
Rohini @ℂall @Girls ꧁❤ 9873940964 ❤꧂VIP Megha Singla Top Model Safe
depikasharma
 
Karol Bagh @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Jya Khan Top Model Safe
Karol Bagh @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Jya Khan Top Model SafeKarol Bagh @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Jya Khan Top Model Safe
Karol Bagh @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Jya Khan Top Model Safe
bookmybebe1
 
EGU2020-10385_presentation LSTM algorithm
EGU2020-10385_presentation LSTM algorithmEGU2020-10385_presentation LSTM algorithm
EGU2020-10385_presentation LSTM algorithm
fatimaezzahraboumaiz2
 
RK Puram @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Neha Singla Top Model Safe
RK Puram @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Neha Singla Top Model SafeRK Puram @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Neha Singla Top Model Safe
RK Puram @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Neha Singla Top Model Safe
Alisha Pathan $A17
 
[D3T2S03] Data&AI Roadshow 2024 - Amazon DocumentDB 실습
[D3T2S03] Data&AI Roadshow 2024 - Amazon DocumentDB 실습[D3T2S03] Data&AI Roadshow 2024 - Amazon DocumentDB 실습
[D3T2S03] Data&AI Roadshow 2024 - Amazon DocumentDB 실습
Amazon Web Services Korea
 

Recently uploaded (20)

NPS_Presentation_V3.pptx it is regarding National pension scheme
NPS_Presentation_V3.pptx it is regarding National pension schemeNPS_Presentation_V3.pptx it is regarding National pension scheme
NPS_Presentation_V3.pptx it is regarding National pension scheme
 
AIRLINE_SATISFACTION_Data Science Solution on Azure
AIRLINE_SATISFACTION_Data Science Solution on AzureAIRLINE_SATISFACTION_Data Science Solution on Azure
AIRLINE_SATISFACTION_Data Science Solution on Azure
 
iot paper presentation FINAL EDIT by kiran.pptx
iot paper presentation FINAL EDIT by kiran.pptxiot paper presentation FINAL EDIT by kiran.pptx
iot paper presentation FINAL EDIT by kiran.pptx
 
[D3T1S03] Amazon DynamoDB design puzzlers
[D3T1S03] Amazon DynamoDB design puzzlers[D3T1S03] Amazon DynamoDB design puzzlers
[D3T1S03] Amazon DynamoDB design puzzlers
 
Delhi @ℂall @Girls ꧁❤ 9711199012 ❤꧂Glamorous sonam Mehra Top Model Safe
Delhi @ℂall @Girls ꧁❤ 9711199012 ❤꧂Glamorous sonam Mehra Top Model SafeDelhi @ℂall @Girls ꧁❤ 9711199012 ❤꧂Glamorous sonam Mehra Top Model Safe
Delhi @ℂall @Girls ꧁❤ 9711199012 ❤꧂Glamorous sonam Mehra Top Model Safe
 
Lajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Ginni Singh Top Model Safe
Lajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Ginni Singh Top Model SafeLajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Ginni Singh Top Model Safe
Lajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Ginni Singh Top Model Safe
 
Lajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Arti Singh Top Model Safe
Lajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Arti Singh Top Model SafeLajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Arti Singh Top Model Safe
Lajpat Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Arti Singh Top Model Safe
 
Sunshine Coast University diploma
Sunshine Coast University diplomaSunshine Coast University diploma
Sunshine Coast University diploma
 
Victoria University degree offer diploma Transcript
Victoria University  degree offer diploma TranscriptVictoria University  degree offer diploma Transcript
Victoria University degree offer diploma Transcript
 
Simon Fraser University degree offer diploma Transcript
Simon Fraser University  degree offer diploma TranscriptSimon Fraser University  degree offer diploma Transcript
Simon Fraser University degree offer diploma Transcript
 
Amul goes international: Desi dairy giant to launch fresh ...
Amul goes international: Desi dairy giant to launch fresh ...Amul goes international: Desi dairy giant to launch fresh ...
Amul goes international: Desi dairy giant to launch fresh ...
 
Streamlining Legacy Complexity Through Modernization
Streamlining Legacy Complexity Through ModernizationStreamlining Legacy Complexity Through Modernization
Streamlining Legacy Complexity Through Modernization
 
University of the Sunshine Coast degree offer diploma Transcript
University of the Sunshine Coast  degree offer diploma TranscriptUniversity of the Sunshine Coast  degree offer diploma Transcript
University of the Sunshine Coast degree offer diploma Transcript
 
Laxmi Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Yogita Mehra Top Model Safe
Laxmi Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Yogita Mehra Top Model SafeLaxmi Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Yogita Mehra Top Model Safe
Laxmi Nagar @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Yogita Mehra Top Model Safe
 
Cómo hemos implementado semántica de "Exactly Once" en nuestra base de datos ...
Cómo hemos implementado semántica de "Exactly Once" en nuestra base de datos ...Cómo hemos implementado semántica de "Exactly Once" en nuestra base de datos ...
Cómo hemos implementado semántica de "Exactly Once" en nuestra base de datos ...
 
Rohini @ℂall @Girls ꧁❤ 9873940964 ❤꧂VIP Megha Singla Top Model Safe
Rohini @ℂall @Girls ꧁❤ 9873940964 ❤꧂VIP Megha Singla Top Model SafeRohini @ℂall @Girls ꧁❤ 9873940964 ❤꧂VIP Megha Singla Top Model Safe
Rohini @ℂall @Girls ꧁❤ 9873940964 ❤꧂VIP Megha Singla Top Model Safe
 
Karol Bagh @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Jya Khan Top Model Safe
Karol Bagh @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Jya Khan Top Model SafeKarol Bagh @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Jya Khan Top Model Safe
Karol Bagh @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Jya Khan Top Model Safe
 
EGU2020-10385_presentation LSTM algorithm
EGU2020-10385_presentation LSTM algorithmEGU2020-10385_presentation LSTM algorithm
EGU2020-10385_presentation LSTM algorithm
 
RK Puram @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Neha Singla Top Model Safe
RK Puram @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Neha Singla Top Model SafeRK Puram @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Neha Singla Top Model Safe
RK Puram @ℂall @Girls ꧁❤ 9873777170 ❤꧂VIP Neha Singla Top Model Safe
 
[D3T2S03] Data&AI Roadshow 2024 - Amazon DocumentDB 실습
[D3T2S03] Data&AI Roadshow 2024 - Amazon DocumentDB 실습[D3T2S03] Data&AI Roadshow 2024 - Amazon DocumentDB 실습
[D3T2S03] Data&AI Roadshow 2024 - Amazon DocumentDB 실습
 

Exploring the co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach

  • 1. Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach Clement Uwizeye RRA & EPRN 10th EPRN Annual Economic Research Conference, 27-28th June 2024 Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 1 / 19
  • 2. Outlines Motivation Purposes Survey from Literature Review Empirical model Data Description Results Robustness & Sensitivity Analysis Discussion on Results Conclusions Policy recommendations Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 2 / 19
  • 3. Motivation Tax-to-GDP ratio is a key indicator of a country’s fiscal health. Understanding co-movements between tax to GDP can inform economic policies. Does high government spending leads high tax to GDP? Does industry and service as potential indicators to GDP lead higher tax to GDP? How resilient in tax policies from high currency depreciation and inflation? Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 3 / 19
  • 4. Purposes To investigate the co-movements between tax to GDP in Rwanda. To utilize wavelet analysis to uncover patterns and relationships over time. To provide policy recommendations based on the results. Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 4 / 19
  • 5. Survey from Literature Review-trends Dahal (2020), As GDP increases, economic activity expands, leading to higher income levels and consumption, which in turn broadens the tax base and enhances tax revenues. Nguyen and Darsono (2022), higher government spending may necessitate increased tax rates or more effective tax collection mechanisms QadirPatoli et al. (2012), High inflation erodes the real value of tax revenues and reduces the purchasing power of consumers, potentially shrinking the tax base Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 5 / 19
  • 6. Survey from Literature Review-Wavelet coherence Rua (2010) employed wavelet analysis to examine the co-movements between GDP and unemployment rates, revealing significant time-varying patterns that traditional econometric methods might overlook. Aguiar-Conraria and Soares (2011) used wavelet coherence to study the synchronization of economic cycles between countries, demonstrating the utility of wavelet analysis in capturing complex economic dynamics Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 6 / 19
  • 7. Empirical model Descriptive analysis using Trend Wavelet Coherence Analysis: This method is effective for understanding how the correlation between the two variables evolves over time and across different frequencies Time-Frequency Domain Exploration: This allows for the detection of both the period and duration of significant relationships between the series, making it exceptionally useful for economic data that exhibits cyclical (co-movement) patterns. Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 7 / 19
  • 8. Empirical model Mathematical Foundation: The mathematical basis of wavelet coherence includes transforming the time series data using wavelets, which are mathematical functions that can localize data in time and scale (frequency) This process helps in identifying the periods during which the tax streams and GDP are most aligned. Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 8 / 19
  • 9. Data Description Table: Summary of Data Used in the Analysis Variables Data Span Source Nominal GDP 2008-2023 Monthly NISR Real GDP 2008-2023 Monthly NISR Inflation Rate 2008-2023 Monthly MINECOFIN Interest Rate 2008-2023 Monthly NBR Industry Value Added 2008-2023 Monthly NISR Service Value Added 2008-2023 Monthly NISR Revenue (Use for Tax to GDP) 2008-2023 Monthly MINECOFIN Depreciation 2008-2023 Monthly NISR (1) The Quarterly & Annual data converted into monthly for Wavelet analysis. (2) In trend analysis, the aggregated data from 2009 to 2023 annual used. Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 9 / 19
  • 10. Results-Trend analysis Figure: Trend analysis of tax to GDP with some economic indicators Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 10 / 19
  • 11. Results-Wavelet Coherence Figure: WC-TaxGDP vs NGDP Figure: WC-TaxGDP vs Government Figure: WC-TaxGDP vs Industry Figure: WC-TaxGDP vs Service Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 11 / 19
  • 12. Results-Wavelet Coherence Figure: WC-TaxGDP vs RGDP Figure: WC-TaxGDP vs Inflation Figure: WC-TaxGDP vs Interest Figure: WC-TaxGDP vs Depreciation Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 12 / 19
  • 13. Robustness & Sensitivity Analysis Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 13 / 19
  • 14. Robustness & Sensitivity Analysis Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 14 / 19
  • 15. Discussion on Results From 2021, Increase of industry value added, Government spendimg are accompanied by decline in taxGDP There is high currency depreciation which lead to economic instability accompanied by decline in taxGDP Using Wavelet coherence: There is strong correlations between tax policies and nominal economic growth during 2008-2010 & 2016-2020 There is strong correlations during 2008-2010 and 2019-2022, indicating significant alignment between tax policies and inflation Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 15 / 19
  • 16. Discussion on Results There is strong correlations in short to medium-term alignments between tax policies and industry performance. Overall, the strong correlations observed in short term at some points in period, showing inefficiency tax policy for sustainable economy The paper contribute to the literature by Enhancing focus on counter-cyclical fiscal policies. Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 16 / 19
  • 17. Conclusions The high coherence with interest rates, inflation, and other variables highlight times of strong policy alignment The low coherence suggest areas where tax policies and economic performance were less coordinated This comprehensive analysis provides a foundation for refining and enhancing tax policies to support sustainable economic growth Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 17 / 19
  • 18. Policy recommendations Understand the successful elements and replicate them in current and future policies. Focus on refining and sustaining these strategies to ensure continued economic stability and growth Explore alternative strategies and enhance coordination between tax policies and economic variables to strengthen these relationships Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 18 / 19
  • 19. Comments & Suggestions Any contribution to the paper? ORCiD: https://orcid.org/0000-0003-1459-3196 Google Scholar: https://bit.ly/ClementResearcherRRA Thank you for your attention. Murakoze! Clement Uwizeye (RRA & EPRN) Exploring the Co-movements of Tax-to-GDP in Rwanda: A Wavelet Analysis Approach 10th EPRN Annual Economic Research Con 19 / 19