# Does anyone recognize the shape of this residuals vs. fitted plot?

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,