All Questions
14
questions
1
vote
1
answer
829
views
Differences between calculating the relative change and taking the natural log to represent relative change in Stata
In a (panel) regression with income as the dependent variable, I would like to estimate the effect of a treatment on the relative change in income. I found two mathematically equivalent ways to do ...
- 205
1
vote
1
answer
469
views
Interpreting log linear margins with endogenous treatment effects
I'm having trouble in understanding the predictive margins after a log linear regression with endogenous treatment effects.
Using stata (with weighted survey design) I ran the following, where logwage ...
- 211
0
votes
1
answer
696
views
Interpreting linear regression with endogenous treatment effects
Using stata (with weighted survey design) I ran the following, where logwage is the log of wage. The log was taken because wage was not normally distributed. There is also information about the ...
- 211
0
votes
1
answer
587
views
Interpretation Confidence interval including zero
I'm performing a negative binomial regression (xtnbreg in Stata). However, I found that the confidence interval of my regression includes zero. I have no clue how ...
- 1
1
vote
1
answer
2k
views
Predicting probabilities after log-linear regression
I would like to estimate a log-linear regression and examine the results with Stata's marginsplot command. I have transformed my dependent variable into natural logarithm (to make a highly skewed ...
1
vote
1
answer
458
views
Interpreting log-log regression results where the original values of one IV have all been increased by 100%
Sorry for the very cryptic title, but I do not know how to describe my problem in another way and I'm sure the solution is rather straightforward.
I am currently running a regression where the ...
- 13
0
votes
0
answers
333
views
Logging independent variable flips sign of coefficient
I am running a fixed effects regression with multiple IVs. One of the IVs has a negative coefficient (which is what I expect from theory) and is significant.
The Stata code would be
...
- 245
0
votes
1
answer
2k
views
Log scale in histogram + Stata
Is there some way to have Stata create bin sizes for a histogram such that when you plot the histogram on a log scale, the bins will all appear to have the same width (visually, not numerically) on ...
- 363
1
vote
0
answers
76
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Comparing coefficient of a fraction (in ln) with coefficient of metric variable (in ln)
I ran a Poisson regression with capital stock as main variable of interest.
The stock K is in natural logarithm (ln) and I want to decompose it in two parts in the following way because I am ...
- 111
5
votes
2
answers
881
views
Alternatives to multilevel model with log transformed outcome
I'm working with linear mixed-effects model in Stata. Dataset has three levels of 100k observations, nested in 500 regions, nested in 70 regions.
Currently my modelling strategy is to use three-...
user22
0
votes
0
answers
59
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Natural logarithm transfomation and zeroes [duplicate]
I am using Stata 13 to estimate a simple regression. Given a rather positive skew of a few of my covariates, I figured to ln-transform the variables.
However, I have a substantial amount of zeroes in ...
- 247
6
votes
1
answer
31k
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Interpretation of marginal effects in Logit Model with log$\times$independent variable
I am totally confused by statistics and I would be glad if you could help me.
I have a difficulties to interpret marginal effects in logit model, if my independent variable is log transformed.
I ...
- 63
1
vote
2
answers
2k
views
Understanding stationarity with Inflation
I am looking at the link between inflation and insolvencies for an econometrics project. I have the raw quarterly insolvency data and raw quarterly CPI data for the UK (roughly 100 samples) from 1988-...
- 11
3
votes
1
answer
10k
views
Interpreting a quadratic logarithmic term
Given the regression model
$y=\beta_0 + 300*ln(x_1) - 15 * (ln(x_1))^2 + \beta_3*x_2 + ... + u $
$x$ ranges from 1 000 to 30 000 (6.9 to 10.3 on a logarithmic scale). How to interpret the diminishing ...
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