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Use this tag to discuss empirical papers and issues arising when applying theoretical models to data. For theoretical econometric issues, use the `econometrics` tag
4
votes
1
answer
99
views
How to deal with multiplicatively constant and additively constant fixed effects?
From Nick Huntington-Klein, The Effect:
Fixed effects is a method of controlling for all variables, whether
they’re observed or not, as long as they stay constant within some
larger category. How can …
6
votes
1
answer
566
views
Why does synthetic control not suffer from backdoor confounders?
From Scott Cunningham in Mixtape, on propensity score matching:
propensity score matching has not seen as wide adoption among
economists as in other non-experimental methods like regression
discontin …
1
vote
1
answer
118
views
Cross validation as a means of validating fixed effects?
To test whether it is appropriate to even use certain types of fixed effects, would it ever be appropriate to use a cross-validation methodology? Let's say that I have this type of mental model:
$$\te …