Monthly Archives: July 2011

Why are There So Many Dummies?

Lina from Essex writes: When talking about grouped data and 2SLS (section 4.1.3) you mention that expanding a continuous instrument is equivalent to have a set of Wald estimators that consistent estimates the causal effect of interest and in the Vietnam paper you mention that using the whole set of dummies as instruments is more […]
Published July 14, 2011 | Tagged , | Leave a comment

Regression what?!

Matt from Western Kentucky U comments on Chapter 3. . . Question: You state: “Our view is that regression can be motivated as a particular sort of weighted matching estimator, and therefore the differences between regression and matching estimates are unlikely to be of major empirical importance” (Chapter 3 p. 70) I take this to […]
Published July 10, 2011 | Tagged , | 3 Comments

High Fashion at the Spring Meeting of Young Economists

as seen at the University of Groningen . . .what a good-lookin crew! what are they spelling?  I wish I knew
Published July 2, 2011 | Tagged , | 1 Comment