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171. The Global Economic Impact of the COVID-19 Pandemic: The Second Wave and Policy Implications

Author:
Gyeong Lyeob Cho, Minsuk Kim, and Yun Kyung Kim
Publication Date:
09-2021
Content Type:
Research Paper
Institution:
Economic Research Institute for ASEAN and East Asia (ERIA)
Abstract:
This paper examines the macroeconomic impact of the COVID-19 pandemic through the Computable General Equilibrium model. Due to a second wave and a subsequent delay in economic recovery, the pandemic could lead to a permanent shock in capital accumulation and productivity. This implies that the shock may not merely affect the short-term growth rate but also negatively impact the future economic growth path from its pre-pandemic trend. Through simulations, in the mild scenario, countries lose 0.10% to 0.31% of their future economic growth rates; in the severe scenario, they lose 0.21% to 0.69%.
Topic:
Economics, Globalization, International Trade and Finance, Public Health, Pandemic, and COVID-19
Political Geography:
Global Focus

172. Better Two Eyes than One: A Synthesis Classification of Exchange Rate Regimes

Author:
Cécile Couharde and Carl Grekou
Publication Date:
10-2021
Content Type:
Working Paper
Institution:
Centre d'Etudes Prospectives et d'Informations Internationales (CEPII)
Abstract:
This paper proposes a new de facto classification of exchange rate regimes, the synthesis classification. The proposed framework has several advantages over existing de facto classifications. First, it offers a unified framework based on the most divergent classifications, the RR and LYS classifications, leading not only to a broader coverage but also to encompass a broad spectrum of exchange systems. Second, it fits better with the known history of exchange rate regimes developments in the post-Bretton Woods era. Among others, it brings an interesting nuance to the so-called hollowing-out hypothesis by showing that the evolution of de facto regimes —especially in emerging economies since the late 1990s— has essentially involved movement toward more tightly “managed” intermediate regimes and not a shift away from such regimes. As an illustration of the insightfulness of our classification, we empirically revisit the nexus between currency crises and exchange rate regimes. In addition to associate a higher probability of currency crisis to both intermediate and floating regimes, our classification, also displays better statistical performances than other classifications in predicting currency crises.
Topic:
Economics, International Cooperation, International Trade and Finance, Exchange Rate Policy, and Currency
Political Geography:
Global Focus

173. Poor Substitutes? Counterfactual methods in IO and Trade compared

Author:
Keith Head and Thierry Mayer
Publication Date:
12-2021
Content Type:
Working Paper
Institution:
Centre d'Etudes Prospectives et d'Informations Internationales (CEPII)
Abstract:
Constant elasticity of substitution (CES) demand for monopolistically competitive firm-varieties is a standard tool for models in international trade and macroeconomics. Inter-variety substitution in this model follows a simple share proportionality rule. In contrast, the standard toolkit in industrial organization (IO) estimates a demand system in which cross-elasticities depend on similarity in observable attributes. The gain in realism from the IO approach comes at the expense of requiring richer data and greater computational challenges. This paper uses the dataset of Berry et al. 1995, who established the modern IO method, to simulate counterfactual trade policy experiments. We use the CES model as an approximation of the more complex underlying demand system and market structure. Although the CES model omits key elements of the data generating process, the errors are offsetting, leading to reasonably accurate counterfactual predictions. For aggregate outcomes, it turns out that incorporating non-unitary pass-through matters more than fixing over-simplified substitution patterns. We do so by extending the commonly used methods of Exact Hat Algebra and tariff elasticity estimation to take into account oligopoly.
Topic:
Economics, Business, Monopoly, Trade, and Models
Political Geography:
Global Focus

174. Long-Term Macroeconomic Projections of the World Economy

Author:
Lionel Fontagné, Erica Perego, and Gianluca Santoni
Publication Date:
12-2021
Content Type:
Working Paper
Institution:
Centre d'Etudes Prospectives et d'Informations Internationales (CEPII)
Abstract:
What will the global economy look like in a generation? The answer depends on the multiple forces driving long-term growth (demography, education, diffusion of technical progress, energy costs, investment and saving behaviour, international capital mobility) and requires a comprehensive framework to conceptualise them. We re-estimate the three-factor (capital, energy, labour) MAcro-econometric model of the Global Economy (MaGE), initially developed by Fouré et al. (2013), with a database covering 170 countries using state-of-the-art methods. We thus establish the long-term structural relationships that drive the dynamics of the World economy. The model projections to 2050 illustrate the expected changes in the World economy and their driving forces. In light of the projected volume of energy consumption, making these projections compatible with climate imperatives calls for increased technology sharing at the international level in order to decouple economic growth from energy use.
Topic:
Economics, Energy Policy, International Trade and Finance, and Macroeconomics
Political Geography:
Global Focus

175. Melons as Lemons: Asymmetric Information, Consumer Learning and Seller Reputation

Author:
Jie Bai
Publication Date:
03-2021
Content Type:
Working Paper
Institution:
The John F. Kennedy School of Government at Harvard University
Abstract:
There is often a lack of reliable quality provision in many markets in developing countries and firms generally lack a reputation for quality. One potential explanation is that mistrust due to past bad behavior can make reputation-building difficult. I examine this hypothesis in a setting that features typical market conditions in developing countries: the retail watermelon markets in a major Chinese city. I first demonstrate empirically that there is substantial asymmetric information between sellers and buyers on quality and a stark absence of quality premium at baseline. I then randomly introduce one of two branding technologies into 40 out of 60 markets–one sticker label that is widely used and counterfeited and one novel expensive laser-cut label. The experiment findings show that laser-branding induced sellers to provide higher quality and led to higher sales profits. However, after the intervention was withdrawn, all markets reverted back to baseline. I incorporate the experimental variation into an empirical model of consumer learning and seller reputation building. The results suggest that consumers are hesitant to upgrade their perception under stickers, which makes reputation-building a low-return investment. While the new technology enhances learning, the resulting increase in profits is not sufficient to cover the fixed cost of the technology for small individual sellers. Counterfactual analysis shows that information friction and fragmented market lead to significant under-provision of quality.
Topic:
Economics, Markets, and Developing World
Political Geography:
China, Asia, and Global Focus

176. Sorting, Matching and Economic Complexity

Author:
Muhammad A. Yildirim
Publication Date:
03-2021
Content Type:
Working Paper
Institution:
The John F. Kennedy School of Government at Harvard University
Abstract:
Assignment models in trade predict that countries with higher productivity levels are assortatively matched to industries that make better use of these higher levels. Here, we assume that the driver of productivity differences is the differential distribution of factors among countries. Utilizing such a structure, we define and estimate the average factor level (AFL) for countries and products using only the information about the production patterns. Interestingly, our estimates coincide with the complexity variables of (Hidalgo and Hausmann, 2009), providing an underlying economic rationale. We show that AFL is highly correlated with country-level characteristics and predictive of future economic growth.
Topic:
Economics, Economic Growth, Trade, Industry, and Productivity
Political Geography:
Global Focus

177. National Development Delivers: And How! And How?

Author:
Lant Pritchett
Publication Date:
05-2021
Content Type:
Special Report
Institution:
The John F. Kennedy School of Government at Harvard University
Abstract:
Core dual ideas of early development economics and practice were that (a) national development was a four-fold transformation of countries towards: (i) a more productive economy, (ii) a more responsive state, (iii) more capable administration, and (iv) a shared identity and equal treatment of citizens and (b) this four-fold transformation of national development would lead to higher levels of human wellbeing. The second idea is strikingly correct: development delivers. National development is empirically necessary for high wellbeing (no country with low levels of national development has high human wellbeing) and also empirically sufficient (no country with high national development has low levels of human wellbeing). Three measures of national development: productive economy, capable administration, and responsive state, explain (essentially) all of the observed variation in an omnibus indicator of wellbeing, the Social Progress Index, which is based on 58 distinct non-economic indicators. How national development delivers on wellbeing varies, in three ways. One, economic growth is much more important for achieving wellbeing at low versus high levels of income. Two, economic growth matters more for “basic needs” than for other dimensions of wellbeing (like social inclusiveness or environmental quality). Three, state capability matters more for wellbeing outcomes that depend on public production than on private goods (and for some wellbeing indicators, like physical safety, for which growth doesn’t matter at all). While these findings may seem too common sense to be worth a paper, national development--and particularly economic growth—is, strangely, under severe challenge as an important and legitimate objective of action within the development industry.
Topic:
Development, Economics, and Economic Growth
Political Geography:
Global Focus

178. Let’s Take the Con Out of Randomized Control Trials in Development: The Puzzles and Paradoxes of External Validity, Empirically Illustrated

Author:
Lant Pritchett
Publication Date:
05-2021
Content Type:
Working Paper
Institution:
The John F. Kennedy School of Government at Harvard University
Abstract:
The enthusiasm for the potential of RCTs in development rests in part on the assumption that the use of the rigorous evidence that emerges from an RCT (or from a small set of studies identified as rigorous in a “systematic” review) leads to the adoption of more effective policies, programs or projects. However, the supposed benefits of using rigorous evidence for “evidence based” policy making depend critically on the extent to which there is external validity. If estimates of causal impact or treatment effects that have internal validity (are unbiased) in one context (where the relevant “context” could be country, region, implementing organization, complementary policies, initial conditions, etc.) cannot be applied to another context then applying evidence that is rigorous in one context may actually reduce predictive accuracy in other contexts relative to simple evidence from that context—even if that evidence is biased (Pritchett and Sandefur 2015). Using empirical estimates from a large number of developing countries of the difference in student learning in public and private schools (just as one potential policy application) I show that commonly made assumptions about external validity are, in the face of the actual observed heterogeneity across contexts, both logically incoherent and empirically unhelpful. Logically incoherent, in that it is impossible to reconcile general claims about external validity of rigorous estimates of causal impact and the heterogeneity of the raw facts about differentials. Empirically unhelpful in that using a single (or small set) of rigorous estimates to apply to all other actually leads to a larger root mean square error of prediction of the “true” causal impact across contexts than just using the estimates from non-experimental data from each country. In the data about private and public schools, under plausible assumptions, an exclusive reliance on the rigorous evidence has RMSE three times worse than using the biased OLS result from each context. In making policy decisions one needs to rely on an understanding of the relevant phenomena that encompasses all of the available evidence.
Topic:
Development, Economics, Education, and Public Policy
Political Geography:
Global Focus

179. Systemic Reconfiguration of Capitalism: Applying Ruggie’s Critique of Waltz in Economics

Author:
Sylvia Ferreira Marques
Publication Date:
08-2021
Content Type:
Journal Article
Journal:
Contexto Internacional
Institution:
Institute of International Relations, Pontifical Catholic University of Rio de Janeiro
Abstract:
This paper identifies changes in the center-periphery structure due to transformations in capitalism since 1970. In its new configuration, capitalism not only altered center-periphery relations but also exerted impact upon peripheral units that affect the system structure itself. This paper aims to apply Ruggie’s famous critique of Waltz in International Relations to analyse global capitalism and show how the changes in the center-periphery cleavage is affecting its systemic reconfiguration in the 21st century. This research identifies the boomerang effect as a new systemic element, that is, as a byproduct of the interaction of units of the global capitalist system in the 21st century.
Topic:
International Relations, Economics, Capitalism, and Economic Theory
Political Geography:
Global Focus

180. World Economy Autumn 2021: Stumbling blocks on the road to recovery

Author:
Klaus-Jurgen Gern, Ulrich Stolzenburg, Stefan Kooths, and Philipp Hauber
Publication Date:
09-2021
Content Type:
Working Paper
Institution:
Kiel Institute for the World Economy (IfW)
Abstract:
The global recovery has lost momentum in the first half of 2021 amid new surges of Covid-19 cases and supply chain disruptions. We still expect world production to rebound strongly after the historic collapse in the previous year but we have lowered our forecast for global GDP growth from 6.7 percent to 5.9 percent. At the same time we are now slightly more upbeat for the coming year with global production expected to grow by 5 percent (June forecast: 4.8 percent). With the economy gradually slowing towards the end of the forecast horizon, we expect still relatively strong annual growth of 3.8 percent in 2023. Consumer price inflation has accelerated markedly over the course of this year, largely due to temporary factors. Our baseline forecast expects price pressures to ease in the coming year and monetary policy to remain accommodative. There are, however, upside risks to inflation as large extra savings amassed by private households in many countries over the past year could fuel a sustained rise in prices. In that case, central banks could tighten policy considerably with negative consequences for the growth outlook.
Topic:
Economics, GDP, Inflation, and COVID-19
Political Geography:
Global Focus