Ramey (2011a) and others argue that increases in government spending associated with wars and military build-ups constitute a good instrument for measuring the macroeconomic effects of fiscal shocks. We argue that this instrument has two important drawbacks: the composition of government...

We estimate the fiscal multiplier associated with shocks to government spending. We consider increases in government spending in the U.S. states in the wake of natural disasters to capture spending shocks that are both unexpected and unrelated to the preceding state of the economy. We find that...