Hello, recently I have a question about weight variables in CPS. I’d appreciate if anyone could give me some helps.

My main question is how to use year-specific weights if I merge multiple years of CPS data, such as 1977 - 2009? In Stata, when I did regression, I simply adding personal or household weights without any adjustment. For an example, “regression hhincome age race i.state [aw = hwtsupp]” to apply weight.

But I also see that the sums of household weights between year to year are highly different. For example, the sum of 2009 is 1.173e+08, of 2001 is 1.083e+08, of 1995 is 0.99e+08 and so on. Is it still reasonable to use year-specific weight when I do regression on multiple-year NHTS data? Should we re-create a new weight variable?

Many thanks.