No abstract

No abstract

This paper constructs an efficiency-adjusted public capital stock series and reexamines the public capital and growth relationship. The paper also examines the effects of four specific stages of the public investment process-appraisal, selection, implementation and evaluation-on capital accumulation and growth. The results show that public capital is a significant contributor to economic growth. Although the estimated coefficient for the income share of public capital is larger in middle-than in low-income countries, the opposite is true for the marginal product of public capital. The quality of public investment, as measured by variables capturing the adequacy of project selection and implementation, are statistically significant in explaining variations in economic growth, a result mainly driven by low-income countries.

IMF Staff DiscussionNotes (SDNs) showcase policy-related analysis and research being developed by IMF staff members and are published to elicit comments and to encourage debate. The views expressed in Staff Discussion Notes are those of the author(s) and do not necessarily represent the views of the IMF, its Executive Board, or IMF management.

The Departmental Paper Series presents research by IMF staff on issues of broad regional or cross-country interest. The views expressed in this paper are those of the author(s) and do not necessarily represent the views of the IMF, its Executive Board, or IMF management.

No abstract

We study the properties of the IMF-WEO estimates of real-time output gaps for countries in the euro area as well as the determinants of their revisions over 1994-2017. The analysis shows that staff typically saw economies as operating below their potential. In real time, output gaps tend to have large and negative averages that are largely revised away in later vintages. Most of the mis-measurement in real time can be explained by the difficulty in predicting recessions and by overestimation of the economy’s potential capacity. We also find, in line with earlier literature, that real-time output gaps are not useful for predicting inflation. In addition, countries where slack (and potential growth) is overestimated to a larger extent primary fiscal balances tend to be lower and public debt ratios are higher and increase faster than projected. Previous research suggests that national authorities’ real-time output gaps suffer from a similar bias. To the extent these estimates play a role in calibrating fiscal policy, over-optimism about long-term growth could contribute to excessive deficits and debt buildup.

This paper seeks to quantify the net benefits of a comprehensive reform package aimed at addressing Italy's interrelated challenges. Specifically, it simulates the growth and competitiveness effects of a package of fiscal, financial, wage bargaining, and other structural reforms. Credible implementation of such a package yields substantial mediumterm dividends at negligible near-term growth costs. Real GDP growth is estimated to be substantially higher over the medium term, while the real effective exchange rate depreciates notably.