Violence

BOTTOM LINE: Yes, there was a merge error in our research note, “When Police Pull Back”. However, correcting it did not render all our key findings nonsignificant as Jacob Kang-Brown claimed. In his replication, Jacob calculated our spatial lag variable differently, thereby reintroducing the endogeneity problem we designed our analysis to avoid. We are correcting, not retracting, the research note. What happened? We made an honest mistake. We own that.

Many U.S. cities witnessed both de-policing and increased crime in 2020, yet it remains unclear whether the former contributed to the latter. Indeed, much of what is known about the effects of proactive policing on crime comes from studies that …