While it has been said that “friends don’t let friends use IV”, one exception has been the Bartik or shift-share instrument. Development economists tend to see these instruments used most in the trade and migration literatures, with Jaeger et al. (2018) noting that “it is difficult to overstate the importance of this instrument for research on immigration.
- Pre-registration should be a plan, not a prison – from the Center for Open Science
- the Atlantic on how female mentors help female engineering students based on a paper forthcoming in PNAS – study only has n=150 at one college, assigned to male mentors, female mentors, or no mentors: 100% of women with female mentors remained in engineering majors at the end of year 1 compared with 82% with male mentors, and 89% without mentors
- Eva Vivalt gives four reasons your study should collect priors
There is a large literature that emphasizes the importance of investments made in early life for lifetime outcomes. Does growing up in a poor, conflict-afflicted country have a negative impact? There are many reasons to think yes, including the disease environment, quality of medical facilities, availability of nutrition, quality of early-childhood education facilities etc.