Working Papers

August 6, 2021

An Evaluation of World Economic Outlook Growth Forecasts, 2004–17

Description: This paper examines the performance of World Economic Outlook (WEO) growth forecasts for 2004-17. Short-term real GDP growth forecasts over that period exhibit little bias, and their accuracy is broadly similar to those of Consensus Economics forecasts. By contrast, two- to five-year ahead WEO growth forecasts in 2004-17 tend to be upward biased, and in up to half of countries less accurate than a naïve forecast given by the average growth rate in the recent past. The analysis suggests that a more efficient use of available information on internal and external factors—such as the estimated output gap, projected terms of trade, and the growth forecasts of major trading partners—can improve the accuracy of some economies’ growth forecasts.

Notes: Online Annex for WP/21/216

August 6, 2021

Intergenerational Social Mobility in Africa Since 1920

Description: The COVID-19 crisis has a severe impact on education and employment and exposed the many social inequities that make some populations more vulnerable to shocks. Despite a vast literature on social mobility in advanced economies, little is known about it in African countries, mainly due to data limitations. Using a large harmonized dataset of more than 72 million individuals, we fill this gap and examine socioeconomic status mobility across generations, measured by educational and occupational attainment. We uncover the substantial geographical variations in the degree of upward/downward educational and occupational mobility across and within African countries, and the gender and rural/urban divide. Additionally, we explore the determinants of social mobility in the African region. We find that social mobility on the continent could be partly explained by observable individual characteristics (gender, marital status, age, etc.), and that educational mobility is a driver of occupational mobility. Lastly, we show that the quality of institutions, the level of public spending on education, social protection coverage, natural resource endowments, and countries' fragility are strong predictors of social mobility in Africa.

August 6, 2021

Does IT Help? Information Technology in Banking and Entrepreneurship

Description: This paper analyzes the importance of information technology (IT) in banking for entrepreneurship. To guide our empirical analysis, we build a parsimonious model of bank screening and lending that predicts that IT in banking can spur entrepreneurship by making it easier for startups to borrow against collateral. We provide empirical evidence that job creation by young firms is stronger in US counties that are more exposed to ITintensive banks. Consistent with a strengthened collateral lending channel for IT banks, entrepreneurship increases more in IT-exposed counties when house prices rise. In line with the model's implications, IT in banking increases startup activity without diminishing startup quality and it also weakens the importance of geographical distance between borrowers and lenders. These results suggest that banks' IT adoption can increase dynamism and productivity.

August 6, 2021

The Impact of Environmental Policy on Innovation in Clean Technologies

Description: This paper studies the effect of climate change mitigating policies on innovation in clean energy technologies. Results suggest that the tightening of environmental policies since the early 1990s have made a statistically and economically significant contribution to the increase in clean innovation. These effects generally materialized quickly, within 2 to 3 years of the policy change, and were driven by individually significant marginal effects of both market-based policies – such as feed-in tariffs and trading schemes – as well as non-market policies, such as R&D subsidies or emission limits. Looking at electricity innovation in particular, the paper finds that the estimated effect on total innovation is positive on net, meaning that increased innovation in clean and grey technologies is not offset by a decrease in innovation in dirty technologies. From a policy point of view, the paper’s results call for strong policy efforts to decisively shift innovation towards clean technologies.

August 6, 2021

Global Corporate Stress Tests—Impact of the COVID-19 Pandemic and Policy Responses

Description: Corporate sector vulnerabilities have been a central policy topic since the outset of the COVID-19 pandemic. In this paper, we analyze some 17,000 publicly listed firms in a sample of 24 countries, and assess their ability to withstand shocks induced by the pandemic to their liquidity, viability and solvency. For this purpose, we develop novel multi-factor sensitivity analysis and dynamic scenario-based stress test techniques to assess the impact of shocks on firm’s ability to service their debt, and on their liquidity and solvency positions. Applying the October 2020 WEO baseline and adverse scenarios, we find that a large share of publicly-listed firms become vulnerable as a result of the pandemic shock and additional borrowing needs to overcome cash shortfalls are large, while firm behavioral responses and policies substantially help overcome the impact of the shock in the near term. Looking forward, while interest coverage ratios tend to improve over time after the initial shock as earnings recover in line with projected macroeconomic conditions, liquidity needs remain substantial in many firms across countries and across industries, while insolvencies rise over time in specific industries. To inform policy debates, we offer an approach to a triage between viable and unviable firms, and find that the needs for liquidity support of viable firms remain important beyond 2020, and that medium-term debt restructuring needs and liquidations of firms may be substantial in the medium-term.

August 6, 2021

Resolving Bank Failures and Institutions: Is there a Link? Some Empirical Evidence

Description: Policymakers across countries have been seeking to strengthen the institutional framework to control fiscal costs and feedback effects to the real economy generated by bank failures. On a cross-section of countries, we find evidence that suggests that bank supervisors’ intervention in bank failures may be positively associated with some aspects of the administrative and regulatory framework. Our results appear to hold also during times of financial instability. Finally, we find some evidence that the same institutional features may be associated with lower fiscal outlays during banking crises.

August 6, 2021

Evolution of Bilateral Swap Lines

Description: This paper makes contributions to the study of bilateral swap lines (BSLs). First, this paper fills a BSL information gap by constructing a comprehensive database of BSLs based on publicly available information, including after the onset of the COVID-19 pandemic. Second, the paper provides the results of regression analysis exploring several empirical questions that were not covered in previous studies. The paper documents the evolution of BSLs into an important part of the Global Financial Safety Net (GFSN), with some helping to stabilize financial market during both the Global Financial Crisis (GFC) and the COVID-19 pandemic. Analysis suggests that countries on the recipient side of BSLs are more likely to sign and renew BSLs designed to alleviate balance of payments needs as their external position weakens. U.S. Federal Reserve BSLs appear to have been effective at stabilizing financial market conditions during the COVID-19 pandemic.

August 6, 2021

Unintended Consequences of U. S. Monetary Policy Shocks: Dutch Disease and Capital Flow Measures in Emerging Markets and Developing Economies

Description: Dutch disease is often referred as a situation in which large and sustained foreign currency inflows lead to a contraction of the tradable sector by giving rise to a real appreciation of the home currency. This paper documents that this syndrome has been witnessed by many emerging markets and developing economies (EMDEs) as a result of surges in capital inflows driven by accommodative U. S. monetary policy. In a sample of 25 EMDEs from 2000-17, U. S. monetary policy shocks coincided with episodes of currency appreciation and a contraction in tradable output in these economies. The paper also shows empirically that the use of capital flow measures (CFMs) has been a common policy response in several EMDEs to U.S. monetary policy shocks. Against this background, the paper presents a two sector small open economy augmented with a learning-by-doing (LBD) mechanism in the tradable sector to rationalize these empirical findings. A welfare analysis provides a rationale for the use of CFMs as a second-best policy when agents do not internalize the LBD externality of costly resource misallocation as a result of greater capital inflows. However, the adequate calibration of CFMs and the quantification of the LBD externality represent important implementation challenges.

August 6, 2021

Endogenous Growth, Downward Wage Rigidities and Optimal Inflation

Description: Standard New Keynesian (NK) models feature an optimal inflation target well below two percent, limited welfare losses from business cycle fluctuations and long-term monetary neutrality. We develop a NK framework with labour market frictions, endogenous productivity and downward wage rigidity (DWR) which challenges these results. The model features a non-vertical long-run Phillips curve between inflation and unemployment and a trade-off between price distortions and output hysteresis that change the welfare-maximizing inflation level. For a plausible set of parameters, the optimal inflation target is in excess of two percent, a target value commonly used across central banks. Deviations from the optimal target carry welfare costs multiple times higher than in traditional NK models. The main reason is that endogenous growth and DWR generate asymmetric and hysteresis effects on unemployment and output. Price level targeting or a Taylor-rule responding to the unemployment rate can handle better the asymmetric and hysteresis effects in our model and deliver significant welfare gains. Our results are robust to the inclusion of the effective lower bound on the monetary policy interest rate.

August 6, 2021

Revisiting Carbon Leakage

Description: This paper estimates the carbon leakage rate across countries, arguably a key parameter in the international climate policy discussion including on border carbon adjustment, but which remains subject to significant uncertainty. We propose innovations along two lines. First, we exploit recently published data on sector-country-specific changes in energy prices to identify changes in domestic carbon emissions and other flows (rather than the historically limited variation in carbon prices or adherence to international climate agreements). Second, we present a simple accounting framework to derive carbon leakage rates from reduced-form regressions in contrast to existing papers, thereby making our results directly comparable to model-based estimates of carbon leakage. We show that carbon leakage rates differ across countries and could be larger than what existing estimates suggest.