Working Papers
2021
May 6, 2021
Avoid a Fall or Fly Again: Turning Points of State Fragility
Description: High persistence of state fragility (a fragility trap) suggests the presence of substantial benefits from avoiding a fall into fragility and considerable hurdles to successful exit from fragility. This paper empirically examines the factors that affect the turning points of entering and exiting from state fragility by employing three different approaches: an event study, the synthetic control method, and a logit model. We find that avoiding economic contraction is critical to prevent a country on the brink of fragility from falling into fragility (e.g., among near fragile countries, the probability of entering fragility would rise by 40 percentage points should real GDP per capita growth decline from +2.5 percent to -2.5 percent). Also, strengthening government effectiveness together with increasing political inclusion and maintaining robust economic activity should help make exit from fragility more successful and sustainable. In the current environment (the COVID-19 crisis and its aftermath), the findings suggest the importance of providing well-directed fiscal stimulus with sufficient financing, (subject to appropriate governance safeguards and well-designed policies), and protecting critical socio-economic spending to keep vulnerable countries away from being caught in a fragility trap.
May 6, 2021
An Empirical Assessment of the Exchange Rate Pass-through in Mozambique
Description: Determining the magnitude and speed of the exchange rate passthrough (ERPT) to inflation has been of paramount importance for policy-makers in developed and emerging economies. This paper estimates the exchange rate passthrough in Mozambique using econometric techniques on a sample spanning from 2001 to 2019. Results suggest that the ERPT is assymetric, sizable and fast, with 50 percent of the exchange rate variations passing through to prices in less than six months. Policy-makers should continue to pursue low and stable inflation and develop a strong track record of prudent macroeconomic policies for the ERPT to decline.
May 6, 2021
The Direct Employment Impact of Public Investment
Description: We evaluate the direct employment effect of the public investment in key infrastructure—electricity, roads, schools and hospitals, and water and sanitation. Using rich firm-level panel data from 41 countries over 19 years, we estimate that US$1 million of public spending in infrastructure create 3–7 jobs in advanced economies, 10–17 jobs in emerging market economies, and 16–30 jobs in low-income developing countries. As a comparison, US$1 million public spending on R&D yields 5–11 jobs in R&D in OECD countries. Green investment and investment with a larger R&D component deliver higher employment effect. Overall, we estimate that one percent of global GDP in public investment can create more than seven million jobs worldwide through its direct employment effects alone.
May 6, 2021
Who Doesn’t Want to be Vaccinated? Determinants of Vaccine Hesitancy During COVID-19
Description: Quick vaccine rollouts are crucial for a strong economic recovery, but vaccine hesitancy could prolong the pandemic and the need for social distancing and lockdowns. We use individual-level data from nationally representative surveys developed by YouGov and Imperial College London to empirically examine the determinants of vaccine hesitancy across 17 countries and over time. Vaccine demand depends on demographic features such as age and gender, but also on perceptions about the severity of COVID-19 and side effects of the vaccine, vaccine access, compliance with protective behaviors, overall trust in government, and how information is shared with peers. We then introduce vaccine hesitancy into an extended SIR model to assess its impact on pandemic dynamics. We find that hesitancy can increase COVID-19 infections and deaths significantly if it slows down vaccine rollouts, but has a smaller impact if all willing adults can be immunized rapidly.
May 5, 2021
Macroeconomic Impact of the Itaipú Treaty Review for Paraguay
Description: With the debt obligation of Itaipú Binational being completed paid off by 2023, the Annex C of the Treaty of Itaipú, which governs the operation and revenue distribution of the Itaipú Dam, is due for review and possible revisions. The implications for Paraguay’s export revenues and fiscal position are potentially significant. The paper reviews the current energy distribution and sales arrangements of Itaipú and the potential implication of the Annex C revision for the future.
May 4, 2021
Balance Sheets and Debt Crises – Empirical Regularities for Modern Cases of Sovereign Distress
Description: Public and private sector balance sheets are an important component to any analysis of debt sustainability. A vulnerable and indebted private sector can become a sudden liability for the government; alternatively, resilient household and bank balance sheets may reveal potential sources of funding for the sovereign during times of fiscal distress. In this paper, we document empirical regularities in the behavior of macroeconomic variables during debt crises, and show how both macroeconomic fundamentals and sectoral net worth can affect the likelihood of undergoing default.
May 1, 2021
Will COVID-19 Have Long-Lasting Effects on Inequality? Evidence from Past Pandemics
Description: This paper provides evidence on the impact of major epidemics from the past two decades on income distribution. The pandemics in our sample, even though much smaller in scale than COVID-19, have led to increases in the Gini coefficient, raised the income share of higher-income deciles, and lowered the employment-to-population ratio for those with basic education compared to those with higher education. We provide some evidence that the distributional consequences from the current pandemic may be larger than those flowing from the historical pandemics in our sample, and larger than those following typical recessions and financial crises.
May 1, 2021
Impact of COVID-19: Nowcasting and Big Data to Track Economic Activity in Sub-Saharan Africa
Description: The COVID-19 pandemic underscores the critical need for detailed, timely information on its evolving economic impacts, particularly for Sub-Saharan Africa (SSA) where data availability and lack of generalizable nowcasting methodologies limit efforts for coordinated policy responses. This paper presents a suite of high frequency and granular country-level indicator tools that can be used to nowcast GDP and track changes in economic activity for countries in SSA. We make two main contributions: (1) demonstration of the predictive power of alternative data variables such as Google search trends and mobile payments, and (2) implementation of two types of modelling methodologies, machine learning and parametric factor models, that have flexibility to incorporate mixed-frequency data variables. We present nowcast results for 2019Q4 and 2020Q1 GDP for Kenya, Nigeria, South Africa, Uganda, and Ghana, and argue that our factor model methodology can be generalized to nowcast and forecast GDP for other SSA countries with limited data availability and shorter timeframes.
May 1, 2021
What Determines Social Distancing? Evidence from Advanced and Emerging Market Economies
Description: The health and economic consequences of COVID-19 are closely tied to individual compliance with recommended protective behaviors. We examine the determinants of this compliance using survey data from the COVID Behavior Tracker for 29 advanced and emerging market economies between March and December 2020. Social distancing behaviors vary significantly by age, gender, occupation, and individual beliefs about COVID-19. In addition, those who trust their government’s response to COVID-19 are significantly more likely to adopt recommended behaviors and to self-isolate if advised, highlighting the need for well-coordinated actions on the health and economic fronts. We also find that mobility restrictions, such as stay-at-home orders, and mask mandates are associated with reduced social interactions and persistent increases in compliance. Together, these drivers account for over two-thirds of the regional differences in compliance, confirming their important role in increasing social distancing and containing the pandemic.
April 30, 2021
Scaling Up Quality Infrastructure Investment
Description: South Asia needs large infrastructure investments to achieve its development goals, and public investment can also support the Covid-19 recovery. Regression estimates that account for the quantity and quality of investment suggest that public infrastructure was a key driver of productivity growth in South Asia. Going forward, higher public infrastructure spending can raise growth, but its benefits depend on how it is financed and managed. Model simulations show that tax financing, concessional lending, or private sector financing through public private partnerships (PPPs) are more advantageous than government borrowing through financial markets because they support growth while containing the impact on public debt. However, the optimal choice also depends on available fiscal space, taxation capacity, implementation risks, and public investment efficiency. To reap the most benefits from higher infrastructure investment, South Asian countries need to manage fiscal risks carefully, including from PPPs and state-owned enterprises, and improve public investment efficiency.