Working Papers
2024
March 29, 2024
Trade in Low Carbon Technologies: The Role of Climate and Trade Policies
Description: Curbing carbon emissions to meet the targets set in the Paris Agreement requires the deployment of low carbon technologies (LCTs) at a global scale. This paper assesses the role of climate and trade policies in fostering LCT diffusion through trade. Leveraging a comprehensive database of climate policies and a new database identifying trade in low carbon technologies and the tariffs applied to these goods, this paper shows that the introduction of new climate policies has a positive and significant impact on LCT imports. Zooming into specific climate policies, the paper finds that, except for non-binding ones, all climate policies stimulate LCT imports. The paper also highlights the role of trade policies as an engine of LCT diffusion—reductions in tariffs applied on LCT goods have a sizeable impact on LCT imports. On the flip side, results suggest that more protectionist measures would impede the spread of low-carbon technologies.
March 29, 2024
Call of Duty: Industrial Policy for the Post-Oil Era
Description: Oil-exporting economies face the risk of an acceleration in the energy transition. A risk-based approach calls for urgent preparation for the post-oil era by diversifying exports and transforming the prevailing growth model. We outline the principles of industrial policy to achieve this objective based on the experience of the Asian Miracles and propose a sketch of the strategy required to transform these principles into practice. The key component of the strategy is to select sectors along two dimensions—proximity to the current production structure or capabilities set and a timeframe for results to materialize. The three strategies—snail crawl, leapfrogging, and moonshots—determine how far from the current production structure the selected sectors are. These sectors need to show results both in the short run to jumpstart growth and ensure policy continuity—“quick wins”—and the long run to create a new growth model—“transformative gains.” We argue that the strategy should focus on supporting the exports of sophisticated sectors in both manufacturing and services while capitalizing on complex tasks and activities in existing industries but should leave non-sophisticated sectors such as tourism and non-tradable services to the private sector.
March 29, 2024
Central Bank Exit Strategies Domestic Transmission and International Spillovers
Description: We study alternative approaches to the withdrawal of prolonged unconventional monetary stimulus (“exit strategies”) by central banks in large, advanced economies. We first show empirically that large-scale asset purchases affect the exchange rate and domestic and foreign term premiums more strongly than conventional short-term policy rate changes when normalizing by the effects on domestic GDP. We then build a two-country New Keynesian model that features segmented bond markets, cognitive discounting and strategic complementarities in price setting that is consistent with these findings. The model implies that quantitative easing (QE) is the only effective way to provide monetary stimulus when policy rates are persistently constrained by the effective lower bound, and that QE is likely to have larger domestic output effects than quantitative tightening (QT). We demonstrate that “exit strategies” by large advanced economies that rely heavily on QT can trigger sizeable inflation-output tradeoffs in foreign recipient economies through the exchange rate and term premium channels. We also show that these tradeoffs are likely to be stronger in emerging market economies, especially those with fixed exchange rates.
March 29, 2024
The Riskiness of Credit Origins and Downside Risks to Economic Activity
Description: We construct a country-level indicator capturing the extent to which aggregate bank credit growth originates from banks with a relatively riskier profile, which we label the Riskiness of Credit Origins (RCO). Using bank-level data from 42 countries over more than two decades, we document that RCO variations over time are a feature of the credit cycle. RCO also robustly predicts downside risks to GDP growth even after controlling for aggregate bank credit growth and financial conditions, among other determinants. RCO’s explanatory power comes from its relationship with asset quality, investor and banking sector sentiment, as well as future banking sector resilience. Our findings underscore the importance of bank heterogeneity for theories of the credit cycle and financial stability policy.
March 29, 2024
Public Debt Dynamics During the Climate Transition
Description: Managing the climate transition presents policymakers with a tradeoff between achieving climate goals, fiscal sustainability, and political feasibility, which calls for a fiscal balancing act with the right mix of policies. This paper develops a tractable dynamic general equilibrium model to quantify the fiscal impacts of various climate policy packages aimed at reaching net zero emissions by mid-century. Our simulations show that relying primarily on spending measures to deliver on climate ambitions will be costly, possibly raising debt by 45-50 percent of GDP by 2050. However, a balanced mix of carbon-pricing and spending-based policies can deliver on net zero with a much smaller fiscal cost, limiting the increase in public debt to 10-15 percent of GDP by 2050. Carbon pricing is central not only as an effective tool for emissions reduction but also as a revenue source. Delaying carbon pricing action could increase costs, especially if less effective measures are scaled up to meet climate targets. Technology spillovers can reduce the costs but bottlenecks in green investment could unwind the gains and slow the transition.
March 29, 2024
Mobile Internet, Collateral, and Banking
Description: Combining administrative data on credit, internet penetration and a land reform in Rwanda, this paper shows that the complementarity between technology and law can overcome financial frictions. Leveraging quasi-experimental variation in 3G availability from lightning strikes and incidental coverage, we show that mobile connectivity steers borrowers from microfinance to commercial banks and improves loan terms. These effects are partly due to the role of 3G internet in facilitating the acquisition of land titles from the reform, used as a collateral for bank loans and mortgages. We quantify that the collateral's availability mediates 35% of the overall effect of mobile internet on credit and 80% for collateralized loans.
March 22, 2024
Cross-Border Impacts of Climate Policy Packages in North America
Description: We quantify cross-border effects of the recent climate mitigation policies introduced in Canada and the U.S., using the global general equilibrium model IMF-ENV. Notably, with the substantial emission reductions from Canada’s carbon tax-led mitigation policies and the U.S.’ Inflation Reduction Act, these two countries would bridge two-thirds of the gap toward their Nationally Determined Contribution (NDC) goals. While the broadly divergent policies are believed to elicit competitiveness concerns, we find the aggregate cross-border effects within North America to be very limited and restricted to the energy intensive and trade exposed industries. Potential carbon leakages are also found to be negligible. A more meaningful difference triggered by policy heterogeneity is rather domestic, especially with U.S. subsidies increasing energy output while the Canada model with a carbon tax would marginally decrease it. This analysis is complemented by a stylized model illustrating how such divergence can affect the terms of trade, but also how these effects can be countered by exchange rate flexibility, border adjustments or domestic taxation.
March 22, 2024
A Proposal to Improve Country-Level Data on Total Factor Productivity Growth
Description: The assumption behind popular data on national capital stocks, and therefore total factor productivity, is that countries were in a steady state in the first year that investment data became available. This paper argues that this assumption is highly implausible and is necessarily responsible for implausible data on the ratio of capital to output and productivity growth. It is not credible that countries with similar incomes had huge differences in their capital stocks. This paper claims, with evidence, that implausible features of the data can be greatly reduced by using data on electricity usage or national stocks of road vehicles.
March 22, 2024
The Dynamic Effects of Local Labor Market Shocks on Small Firms in The United States
Description: We use payroll data on over 1 million workers at 80,000 small firms to construct county-month measures of employment, hours, and wages that correct for dynamic changes in sample composition in response to business cycle fluctuations. We use this to estimate the response of small firms' employment, hours and wages following tighter local labor market conditions. We find that employment and hours per worker fall and wages rise. This is consistent with the predictions of the response to a demand shock in the well-known “jobs ladder” model of labor markets. To check this interpretation, we show our results hold when instrumenting for local demand using county-level Department of Defense contract spending. Correction for dynamic sample bias is important -- without it, the hours fall by only one third as much and wages increase by double.
March 22, 2024
Global Value Chain and Inflation Dynamics
Description: We study the inflationary impacts of pandemic lockdown shocks and fiscal and monetary stimulus during 2020-2022 using a novel harmonized dataset of sectoral producer price inflation and input-output linkages for more than 1000 sectors in 53 countries. The inflationary impact of shocks is identified via a Bartik shift-share design, where shares reflect the heterogeneous sectoral exposure to shocks and are derived from a macroeconomic model of international production network. We find that pandemic lockdowns, and subsequent reopening policies, were the most dominant driver of global inflation in this period, especially through their impact on aggregate demand. We provide a decomposition of lockdown shock by sources, and find that between 20-30 percent of the demand effect of lockdown/reopening is due to spillover from abroad. Finally, while fiscal and monetary policies played an important role in preventing deflation in 2020, their effects diminished in the recovery years.