DISCLAIMER: Staff Discussion Notes (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 recent COVID-19 crisis has generated a concern that productivity (which was already at historically low levels) may further decline. From a theoretical standpoint, the recessions-total factor productivity (TFP) nexus is ambiguous à priori . This paper empirically examines the dynamic impact of recessions on TFP. We compute a new measure of utilization-adjusted productivity from a sample of 24 industries in 18 advanced economies between 1970 and 2014. Resorting to the local projection method we trace out the dynamic short to medium-term impact of such recessionary shocks. We find that deep recessions lead to a permanent deterioration in the level of total factor productivity. This effect is driven by the increase in resource misallocation across different sectors.

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The Policy Research Working Paper Series disseminates the findings of work in progress to encourage the exchange of ideas about development issues. An objective of the series is to get the findings out quickly, even if the presentations are less than fully polished. The papers carry the names of the authors and should be cited accordingly. The findings, interpretations, and conclusions expressed in this paper are entirely those of the authors. They do not necessarily represent the views of the International Bank for Reconstruction and Development/World Bank and its affiliated organizations, or those of the Executive Directors of the World Bank or the governments they represent.

The Policy Research Working Paper Series disseminates the findings of work in progress to encourage the exchange of ideas about development issues. An objective of the series is to get the findings out quickly, even if the presentations are less than fully polished. The papers carry the names of the authors and should be cited accordingly. The findings, interpretations, and conclusions expressed in this paper are entirely those of the authors. They do not necessarily represent the views of the International Bank for Reconstruction and Development/World Bank and its affiliated organizations, or those of the Executive Directors of the World Bank or the governments they represent.

This paper provides empirical evidence showing that smaller countries tend to have more volatile government consumption for a sample of 160 countries from 1960 to 2000. It also shows that country size is negatively related to the discretionary part of government consumption and to the volatilities of most of government consumption items. We argue that the larger size of a country decreases the volatility of government consumption because it acts as an insurance against idiosyncratic shocks, and it leads to increasing returns to scale due to the higher ability of the government to spread its cost of financing over a larger pool of taxpayers. The results are robust to different time and country samples, different econometric techniques and to several sets of control variables.

Global potential output growth has been flagging. At 2.5 percent in 2013-17, post-crisis potential growth is 0.5 percentage point below its longer-term average and 0.9 percentage point below its average a decade ago. Compared with a decade ago, potential growth has declined 0.8 percentage point in advanced economies and 1.1 percentage point in emerging market and developing economies. The slowdown mainly reflected weaker capital accumulation but is also evidence of decelerating productivity growth and demographic trends that dampen labor supply growth. Unless countered, these forces are expected to continue and to depress global potential growth further by 0.2 percentage point over the next decade. A menu of policy options is available to help reverse this trend, including comprehensive policy initiatives to lift physical and human capital and to encourage labor force participation by women and older workers.