What Are We Weighting For?

Gary Solon, Steven J. Haider and Jeffrey Wooldridge

Journal of Human Resources, 2015, vol. 50, issue 2, 301-316

Abstract: When estimating population descriptive statistics, weighting is called for if needed to make the analysis sample representative of the target population. With regard to research directed instead at estimating causal effects, we discuss three distinct weighting motives: (1) to achieve precise estimates by correcting for heteroskedasticity; (2) to achieve consistent estimates by correcting for endogenous sampling; and (3) to identify average partial effects in the presence of unmodeled heterogeneity of effects. In each case, we find that the motive sometimes does not apply in situations where practitioners often assume it does.

Date: 2015
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Working Paper: What Are We Weighting For? (2013)
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Persistent link: https://EconPapers.repec.org/RePEc:uwp:jhriss:v:50:y:2015:i:2:p:301-316

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