Showing posts with label Research. Show all posts
Showing posts with label Research. Show all posts

Sunday, July 18, 2010

Panel Data Treatment

Stata Panel Data Functions
  1. xtreg ..., re/fe
  2. xtabond (does not allow time-invariant variables)
  3. xthtaylor ... end(...) varying(...) no constant
Othe issues
  • Unbalanced Panel: make it balanced by Zeroing out/Compression.
  • Dynamic Panel: serial correlation.
  • Random vs. Fixed: Hausmen Test Significant P-value indicating the use of Fixed Effect.
  • Independent Variables: Endogenous vs. Exogenous, Time Variant vs. Time Invariant

Correlation Test Statitics in STATA

  • To generate p-value, use "pwcorr 1 2 3 ... sig star/print(.05)". Null Hypothesis H0: Rho = 0 Variables 1 and 2 are not related. Alternative Ha: Rho not equal to 0