In the 1970s macroeconomists often disagreed bitterly. Macroeconomists have now largely converged on method, model design, and macroeconomic policy advice. The disagreements that remain all stem from the practical implementation of the methodology. Some macroeconomists think that New Keynesian...

"Some economists argue that the neoclassical growth model cannot account for the macroeconomic effects of big fiscal shocks. This paper reassesses this view. We test the theory using data from World War II, which is by far the largest fiscal shock in the history of the United States. We take...