Ok. I can’t wait anymore. Someday this paper (co-written with my advisor) will show up here. The paper reviews trends in immigration in California and summarizes the findings of one of Peri’s working papers. In that more technical paper, Peri found a clever way to control for all three confounding effects I’ve discussed before that can contaminate estimates of the effects of immigration on native employment outcomes. Consistent with most of the literature, he finds no negative effects of immigration in this respect.
Also, here’s Peri talking about immigration: