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  • Presence of Heteroscedasticity but no serial Correlation in Panel, how do I Proceed

    I am working on the impact of Trade integration on poverty reduction in ECOWAS
    Number of Countries: 15
    Time: 10 years.

    Below is my code.
    After analysing, I can see that there is heteroscedasticity but no serial correlation. Can I proceed with GLS (xtgls)?
    please help on what i should do next?

    My codes and what I have done are in the picture below
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    I want to know what to do next and also the test to use in analysing the panel data after the presence of heteroscedasticity with no serial correlation.

  • #2
    Since you have only 15 countries, you may want to look at wild bootstrap standard errors.

    Code:
    ssc install boottest, replace
    help boottest
    Compare the wild-bootstrap standard errors with your non-clustered standard errors from -xtreg, fe-. If there is no big difference, then the heteroskedasticity does not affect your results.

    Comment


    • #3
      also see
      Code:
      help wildbootstrap
      for StataCorp's version of the wild bootstrap

      Comment

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