Replication data for: Nuclear Assistance Does Not Cause Nuclear Proliferation

This article shows that Matthew Kroenig (2009)’s evidence that nuclear assistance increases states’ probability of acquiring nuclear weapons is overturned when more comprehensive indicators of state capacity are taken into account. Matthew Kroenig’s ``Importing the Bomb” presents a supply-side argument that a state’s ability to acquire nuclear weapons is determined by whether it receives sensitive nuclear assistance. This article challenges those findings by incorporating the composite index of national capability (CINC), a widely-accepted aggregate measure of national capability. Our findings show that such assistance has little effect on the probability of acquisition when national capability is included as a control.