This paper examines fiscal policy forecasts prepared for the Federal Open Market Committee and its influence on U.S. monetary policy. The forecasts contain useful information beyond that in the CBO’s forecasts. Fiscal forecast errors are only weakly correlated with forecast errors for inflation and output growth, but those for the budget surplus are highly correlated with those for the unemployment rate and the output gap. Some fiscal variables can also account for a significant fraction of the “exogenous” changes in the federal funds rate target that Romer and Romer (2004) studied, consistent with the board’s statements on the importance of fiscal policy.

This paper uses a real-time data set to analyze data revisions and to test the robustness of published econometric results. The data set consists of vintages, or snapshots, of the major macroeconomic data available at quarterly intervals in real time. The paper illustrates why such data may matter, examines the properties of several of the variables in the data set across vintages, and examines key empirical papers in macroeconomics, investigating their robustness to different vintages.