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Do-file rules, revisited

Back in 2009 I wrote this post, detailing what at the time I thought would be a good way to write do-files. Some of the ideas there have stood the test of time. Others haven’t. The changes are driven by Stata’s evolution, by new things I’ve learned and by ways that my work changed. This [...]

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Why visualizing instrumental variables made me less excited about it

Instrumental variables (IV and 2SLS) is a statistical approach commonly used in the empirical social sciences (“instrumental variables” has > 84,000 hits on google scholar) but it often seems to be over-interpreted. I realized th…

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