Working Papers
2022
July 1, 2022
Agglomeration, Innovation, and Spatial Reallocation: The Aggregate Effects of R&D Tax Credits
Description: I investigate the aggregate effects of R&D tax credits in the US. Because it subsidizes R&D activity and because credit rates vary between states, this policy has both spatial and dynamic effects on the economy. To address this issue, I construct an endogenous growth model with spatial heterogeneity and agglomeration spillovers in innovation. Aggregate outcomes in this model are thus affected by the spatial distribution of the population in the economy, which is itself endogenous and reacts to policy. I use this framework to identify a set of local R&D subsidies that maximize aggregate welfare.
June 24, 2022
Quarterly Projection Model for Vietnam: A Hybrid Approach for Monetary Policy Implementation
Description: We present a newly developed Quarterly Projection Model (QPM) for Vietnam. This QPM represents an extended version of the canonical New Keynesian semi-structural model, accounting for Vietnam-specific factors, including a hybrid monetary policy framework. The model incorporates the array of policy instruments, specifically interest rates, indicative nominal credit growth guidance, and exchange rate interventions, that the authorities employ to meet the primary objective of price stability. The calibrated model embeds a theoretically consistent monetary transmission mechanism and demonstrates robust in-sample forecasting accuracy, both of which are important prerequisites for the richer analysis and forecast-based narratives that support a forward-looking monetary policy regime.
June 24, 2022
The Distributional Impacts of Worker Reallocation: Evidence from Europe
Description: Using individual-level data for 30 European countries between 1983 and 2019, we document the extent and earning consequences of workers’ reallocation across occupations and industries and how these outcomes vary with individual-level characteristics, namely (i) education, (ii) gender, and (iii) age. We find that while young workers are more likely to experience earnings gains with on-the-job sectoral and occupational switches, low-skilled workers’ employment transitions are associated with an earnings loss. These differences in earnings gains and losses also mask a high degree of heterogeneity related to trends in routinization. We find that workers, particularly low-skilled and older workers during recessions, experience a severe earning penalty when switching occupations from non-routine to routine occupations.
June 17, 2022
Policy Space Index: Short-Term Response to a Catastrophic Event
Description: What policy space does a country have for a short-term response to a catastrophic event? To quantify this space, the paper proposes a policy space index. The index combines a quantitative, albeit relatively limited and narrow, fiscal space concept with the indicators of nominal monetary space and reserve space. Each nominal policy space indicator is then adjusted for individual country’s institutional features, such as the status of its currency, income group, access to capital markets, debt distress level, and the exchange rate regime. The final policy space index is derived as a composite of the three nominal policy space indicators, each adjusted for five institutional features. This index is different from the approach to measure fiscal space at the IMF and requires more work before it can be used operationally. The proposed index allows measuring the overall policy space in each country directly in percent of GDP. By way of illustration, the paper applies the index to the Covid-19 crisis.
June 17, 2022
Sovereign Debt
Description: This paper surveys the literature on sovereign debt from the perspective of understanding how sovereign debt differs from privately issue debt, and why sovereign debt is deemed safe in some countries but risky in others. The answers relate to the unique power of the sovereign. One the one hand, a sovereign has the power to tax, making debt relatively safe; on the other, it also has control over its territory and most of its assets, making debt enforcement difficult. The paper discusses debt contracts and the sovereign debt market, sovereign debt restructurings, and the empirical and theoretical literatures on the costs and causes of defaults. It describes the adverse impact of sovereign default risk on the issuing countries and what explains this impact. The survey concludes with a discussion of policy options to reduce sovereign risk, including fiscal frameworks that act as commitment devices, state-contingent debt, and independent and credible monetary policy.
June 17, 2022
Income Convergence or Divergence in the Aftermath of the COVID-19 Shock?
Description: The paper extends the work of Deaton (2021) by exploring the period of post-crisis recovery in 2021-2024. The paper documents per-capita income divergence during the period of post-shock recovery, with countries at the bottom of the income distribution falling significantly behind. Findings suggest that higher COVID-19 vaccination rates and targeted virus containment measures are associated with faster recovery in per-capita incomes in the medium term. Evidence on the effectiveness of economic support policies for reducing cross-country income inequality, including fiscal and monetary policies, is mixed especially in the case of developing countries.
June 17, 2022
International Trade Spillovers from Domestic COVID-19 Lockdowns
Description: While standard demand factors perform well in predicting historical trade patterns, they fail conspicuously in 2020, when pandemic-specific factors played a key role above and beyond demand. Prediction errors from a multilateral import demand model in 2020 vary systematically with the health preparedness of trade partners, suggesting that pandemic-response policies have international spillovers. Bilateral product-level data covering about 95 percent of global goods trade reveals sizable negative international spillovers to trade from supply disruptions due to domestic lockdowns. These international spillovers accounted for up to 60 percent of the observed decline in trade in the early phase of the pandemic, but their effect was shortlived, concentrated among goods produced in key global value chains, and mitigated by the availability of remote working and the size of the fiscal response to the pandemic.
June 17, 2022
Pictures of a Revolution: Analyzing the Transition from Global Bimetallism to the Gold Standard in the 1860s and 1870s
Description: In the early 1870s, the global monetary system transitioned from bimetallism—a regime in which gold and silver currencies were tied at quasi-fixed exhange ratios—to the gold standard that was characterized by the use of (only) gold as the main currency metal by the largest and most advanced economies. The transition ocurred against the backdrop of both large supply shifts in global bullion markets in the 1850s and 60s and momentous political events, such as the Franco-Prussian war of 1870/71 and the subsequent foundation of the German empire. The causes for the transition have long been a matter of intense debate. This article discusses three separate but interrelated issues: (i) assessing the robustness of the pre-1870 bimetallic system to shocks—which includes a discussion of the appropriate use of Flandreau’s (1996) reference model; (ii) analyzing the transition from bimetallism to gold as a multi-stage currency game played by France and Germany; and (iii) evaluating the monetary debates at the German Handelstag conferences in the 1860s, to present a more complete narrative of the German discussion in the run-up to the transition.
June 10, 2022
The Ararat Fiscal Strategy Model: A Structural Framework for Fiscal Policy Analysis in Armenia
Description: This paper presents an overview of the Ararat Fiscal Strategy Model (AFSM), which is a structural, New-Keynesian, DSGE, small open economy model with a rich fiscal block that includes several expenditure and revenue instruments, and types of debt. The AFSM is now a formal part of the Ministry of Finance analytical toolkit to do macroeconomic fiscal policy scenario analysis, which feeds into policy discussions, budget planning, and the Medium-Term Expenditure Framework. The model was applied to assses the macroeconomic impact of the “first wave” of the Covid-19 pandemic on the Armenian economy, including the mitigating effects of policy responses. AFSM simulations revealed a potential severe impact in 2020, with declines in GDP and consumption of 12.9 and 11.7 percent, respectively, and a cumulative loss of GDP of 38 percent for the period 2020-2023. They also highlighted a significant fiscal outlook deterioration that would increase public debt-to-GDP ratios by 18.8 percentage points over 2020-23. The package of counter-cyclical fiscal measures of 3.6 percent of GDP, however, was estimated to cushion the 2020 GDP decline by almost 2 percentage points, as well as protect jobs. A second AFSM application related to the 2018 public investment under-execution showed the importance of improving the efficiency of public investment to have positive macroeconomic and fiscal effects.
June 10, 2022
A New Claims-Based Unemployment Dataset: Application to Postwar Recoveries Across U.S. States
Description: Using newly digitized unemployment insurance claims data we construct a historical monthly unemployment series for U.S. states going back to January 1947. The constructed series are highly correlated with the Bureau of Labor Statics' state-level unemployment data, which are only available from January 1976 onwards, and capture consistent patterns in the business cycle. We use our claims-based unemployment series to examine the evolving pace of post-war unemployment recoveries at the state level. We find that faster recoveries are associated with greater heterogeneity in the recovery rate of unemployment and slower recoveries tend to be more uniformly paced across states. In addition, we find that the pace of unemployment recoveries is strongly correlated with a states' manufacturing share of output.