“…academic researchers) to those where the timing cannot be changed (e.g., teaching and nursing), we do not have detailed occupational data. A number of papers find that financial incentives affect worker absence (e.g., Winkler, 1980, Jacobson, 1989, Ehrenberg et al, 1991, Barmby et al, 1991, Brown and Sessions, 1996, and Lindeboom and Kerkhofs, 2000, so it is reasonable to think that workers can adjust the timing and frequency of absence to some degree. 19 Herrmann and Rockoff (2010) find the evidence that individuals substitute between absences; while school teachers who live farther away are far more likely to be absent on bad weather days, the number of bad weather days in a year is not significantly related to total annual absences, strongly suggesting that these teachers adjust by reducing other absences.…”