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0answers
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How to correct for heteroskedasticity in fixed effects panel regression with correction for clustered standard error?

I am a student at RSM and I have a question regarding my regression analysis for my thesis as I have encountered issues I do not know how to deal with. I have performance data (dependent variable) of ...
2
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1answer
111 views

How should I fit heteroskedasticity by group?

I am trying to fit panel data to a model of the form $$y_{t,i} = \sum_{j} X_{t,i,j} \beta_j + \sum_k Z_{t,i,k} \gamma_{i,k} + \sigma_i \epsilon_{t,i},$$ where the regressors $X$ and $Z$ are observed ...
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3answers
6k views

Autocorrelation and heteroskedasticity in panel data

In the research, both autocorrelation and heteroskedasticity are detected in panel data analysis. I can solve them separately in stata with command "xtregar" and "robust", respectly. However, I cannot ...
3
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2answers
1k views

Why do I get different heteroscedasticity robust standard errors in R when using the plm package?

I am now writing my bachelors thesis and I have come across some difficulties. I am about to do some panel regressions with time and entity fixed effects and I would therefore like to use the plm ...