Ben Highton writes:
One of my colleagues thinks he remembers an essay your wrote in response to the Cox/Katz argument about using “involuntary exits” from the House (due to death, etc.) as a means to get leverage on the incumbency advantage as distinct from strategic retirement in their gerrymandering book. Would you mind sending me a copy?
It’s in our rejoinder to my article with Zaiying Huang, Estimating incumbency advantage and its variation, as an example of a before/after study (with discussion), JASA (2008). See page 450. Steve Ansolabehere assisted me in discussing this point.
P.S. There was a question about how this relates to David Lee’s work on estimating incumbency advantage using discontinuities in the vote. My short answer is that Lee’s work is interesting, but he’s not measuring the effect of politicians’ incumbency status. He’s measuring the effect of being in the incumbent party, which in a country without strong candidate effects (India, perhaps, according to Leigh Linden) can make sense but doesn’t correspond to what we think of as incumbency effects in the United States. Identification strategies are all well and good, but you have to look carefully at what you’re actually identifying!