Hello Stack Exchange community,
I'm running a regression on a survey dataset which consists of 45,381 individuals in 36 countries using Stata. My model is specified as:
reg income religious `controls' [pweight=Combinwt], cluster(village)
where Combinwt is the probability weight and standard errors are clustered at the village level, since the survey is performed by randomly choosing villages in a region and then randomly choosing individuals within that village.
When I ask Stata to produce a residuals vs. fitted plot, this is the result:
I have never seen an rvf plot that looks like this before. Does anyone have any ideas for what could explain the shape of the plot?
Best regards,