It is widely believed that regional labour markets in the USA are highly flexible, so that employment shocks have only transitory effects on joblessness since induced migration quickly offsets much of the initial impact. However time-series analysis of the response to shocks is very sensitive to...

Since the seminal work of Blanchard and Katz, it has been widely believed that interstate migration causes state-level employment rates in the United States to revert rapidly to normal following a regional employment shock. This paper identifies two sources of bias in conventional estimates of...