25 Jul 2016Working Paper Summaries

Bias in Official Fiscal Forecasts: Can Private Forecasts Help?

by Jeffrey A. Frankel and Jesse Schreger
Why do countries find it so hard to get their deficits under control? The authors bring together data on private sector forecasts with official government forecasts of 26 countries, and identify systematic patterns in errors that official budget agencies make in their forecasts—particularly over-optimistic forecasts of GDP growth and budget balances. Incorporating private sector forecasts into the budget process could reduce violations of limits set by fiscal rules by identifying errors ahead of time rather than just afterwards.

Author Abstract

Government forecasts of GDP growth and budget balances are generally more over optimistic than private sector forecasts. When official forecasts are especially optimistic relative to private forecasts ex ante, they are more likely also to be over optimistic relative to realizations ex post. For example, euro area governments during the period 1999–2007 assiduously and inaccurately avoided forecasting deficit levels that would exceed the 3% Stability and Growth Pact threshold; meanwhile, private sector forecasters were not subject to this crude bias. As a result, using private sector forecasts as an input into the government budgeting-making process would probably reduce official forecast errors for budget deficits.

Paper Information

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