Potential output estimation plays a crucial role in conducting fiscal policy based on structural balances. Difficulties in estimating potential output could lead to an erroneous policy stance with a consequent impact on growth. This paper analyzes historical data on revisions of actual and potential growth in the European Union and the implication of these revisions for the measurement of fiscal effort using the cyclically-adjusted primary balance (CAPB). It finds that revisions in output gap estimates were large, at almost 1½ percent of potential GDP on average. Revisions in potential GDP also contributed significantly to revisions in the estimated CAPB, especially during the crisis years. Given these findings and historical correlations, it proposes an indicative rule of thumb for reducing errors in the measurement of fiscal effort by factoring in that about 30 percent of revisions in actual growth capture changes in potential growth. In other words, the standard advice of "letting automatic stabilizers operate fully" in response to a positive/negative growth shocks likely implies a strengthening/weakening of the structural position.

This Working Paper should not be reported as representing the views of the IMF.

This Working Paper should not be reported as representing the views of the IMF. The views expressed in this Working Paper are those of the author(s) and do not necessarily represent those of the IMF or IMF policy. Working Papers describe research in progress by the author(s) and are published to elicit comments and to further debate. This paper analyzes the relationship between fiscal adjustment and real GDP growth in a panel of 26 transition economies during 1992-2001. Unlike most previous studies using crosscountry regressions, the paper finds a positive and statistically significant relationship between fiscal adjustment and growth that is robust to different model specifications and estimation methods. The paper also presents country experiences to delve deeper into the mechanisms that may underlie this statistical relationship.

This paper studies the factors behind pro-cyclical but widely varying construction shares (as a percent of GDP) across countries, with a strong focus on European countries. Using a dataset covering 48 countries (including advanced and emerging economies within and outside Europe) for 1990-2011, we find that country's geography, demographics, and economic conditions are the key determinants of a norm around which actual construction shares revolve in a simple AR(1) and error-correction process. The empirical results show that in many European countries, construction shares overshoot relative to their norms before the recent global crisis, but they have fallen significantly since the crisis. Nevertheless, there is still room for further adjustment in construction shares in some countries which may weigh on economic recovery.

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