Working Papers
2021
March 26, 2021
What's in the R- Stars for Korea?
Description: Korea’s stars tell of an economy saddled with a real neutral rate (r-star) that has declined significantly in recent decades and is currently below zero. This reflects a significant decline in trend growth, and two large financial crises that triggered significant shifts in the saving-investment balance. Larger fiscal deficits and frothy financial conditions since 2012 have helped offset rising demand for safer assets, preventing the neutral rate from falling further. Nonetheless, the fall in the neutral rate, coupled with its effects on asset returns, has complicated the task of monetary policy stabilization. Korea’s neutral rate is likely to remain low over the medium-term and could fall further, reflecting a structural savings-investment imbalance owing to declining productivity and a rotation in demographics increasing the demand for precautionary saving and convenience yield, and widening the capital risk premia. The COVID pandemic risks magnifying these trends.
March 19, 2021
Digital Financial Inclusion in Emerging and Developing Economies: A New Index
Description: Adoption of technology in the financial services industry (i.e. fintech) has been accelerating in recent years. To systematically and comprehensively assess the extent and progress over time in financial inclusion enabled by technology, we develop a novel digital financial inclusion index. This index is based on payments data covering 52 developing countries for 2014 and 2017, taking into account both access and usage dimentions of digital financial services (DFSs). This index is then combined with the traditional measures of financial inclusion in the literature and aggregated into an overall index of financial inlusion. There are two key findings: first, the adoption of fintech has been a key driver of financial inclusion. Second, there is wide variation across countries and regions, with the greatest progress recorded in Africa and Asia and the Pacific regions. This index should offer a useful analytical tool for researchers and policy makers.
March 19, 2021
Building Back Better: How Big Are Green Spending Multipliers?
Description: This paper provides estimates of output multipliers for spending in clean energy and biodiversity conservation, as well as for spending on non-ecofriendly energy and land use activities. Using a new international dataset, we find that every dollar spent on key carbon-neutral or carbon-sink activities can generate more than a dollar’s worth of economic activity. Although not all green and non-ecofriendly expenditures in the dataset are strictly comparable due to data limitations, estimated multipliers associated with spending on renewable and fossil fuel energy investment are comparable, and the former (1.1-1.5) are larger than the latter (0.5-0.6) with over 90 percent probability. These findings survive several robustness checks and lend support to bottom-up analyses arguing that stabilizing climate and reversing biodiversity loss are not at odds with continuing economic advances.
March 19, 2021
Equilibrium Foreign Currency Mortgages
Description: This paper proposes a novel explanation for why foreign currency denominated loans to households have become so popular in some emerging economies. Our argument is based on what we call the debt limit channel, which arises when multi-period contracts are offered to financially constrained borrowers against collateral that is established on newly acquired assets. Whenever the difference between domestic and foreign interest rates is positive, this effect biases borrowers’ choices towards foreign currency, even if the exchange rate is known to depreciate as implied by the interest parity condition. We demonstrate in a structural macroeconomic framework that the debt limit channel is quantitatively important and can result in dollarization of debt also in the presence of realistic exchange rate risk. Comparing this outcome to allocations under constrained-optimal time-consistent policy reveals that a substantial part of the identified bias towards foreign currency is due to a pecuniary externality, i.e. borrowers’ failure to internalize how their currency choice affects collateral prices.
March 19, 2021
Public Expenditure and Inclusive Growth - A Survey
Description: This paper explores the role of public expenditure in fostering inclusive growth. It starts with a presentation of salient features of public expenditure. Then, it lays out an analytical framework that describes the channels through which public expenditure affects inequality and poverty in the short and long term. Based on a review of the empirical literature, it discusses the policy options. Finally, the paper assesses the role of key factors such as the initial conditions, and the institutions, in shaping the inclusive spending policies.
March 19, 2021
The Political Economy of Inclusive Growth: A Review
Description: In this paper, we review the role of the political economy in inclusive growth. We find that political economy forces on the demand and supply side have weakened redistribution over time and contributed to a new wave of populism. We document growing support for a rethink of the social contract to make growth more inclusive and discuss some of its broad elements.
March 19, 2021
Macroeconomic Stability and Inclusive Growth
Description: We survey the literature on the relationship between macroeconomic stability and inclusive growth and identify gaps in our knowledge. We examine the role of macroeconomic policies (fiscal, monetary, macroprudential, and exchange rate) and measures of inclusiveness (income inequality, consumption inequality, wealth inequality, poverty, and unemployment) across countries at different income levels. Avoiding procyclical macroeconomic policies and mitigating macroeconomic volatility should be on the agenda of all policymakers concerned with promoting inclusive growth. The emerging theory and evidence suggest a strong role for macroeconomic policies in shaping inclusive growth, both in the short-run and the long-run. The two-way relationship between the macroeconomy and inequality underscores the challenge of identifying and estimating causal relationships. Models with heterogeneous agents have much to offer in this area.
March 19, 2021
Competition, Innovation, and Inclusive Growth
Description: We provide an overview of the theories and empricial evidence on the complex relationship among innovation, competition, and inclusive growth. Competition and innovation-led growth are critical to drive productivity gains and support broad-based growth. However, new technologies and trends in market concentration are stifling future innovation while contributing to the marked increase in inequality. Beyond consumer welfare in a narrow market, competition policy should adapt to this new reality by considering the spillover and dynamic effects of market power, especially on firm entry, innovation, and inequality. Innovation policies should tackle not only government failures but also market failures.
March 19, 2021
Pricing Protest: The Response of Financial Markets to Social Unrest
Description: Using a new daily index of social unrest, we provide systematic evidence on the negative impact of social unrest on stock market performance. An average social unrest episode in an typical country causes a 1.4 percentage point drop in cumulative abnormal returns over a two-week event window. This drop is more pronounced for events that last longer and for events that happen in emerging markets. Stronger institutions, particularly better governance and more democratic systems, mitigate the adverse impact of social unrest on stock market returns.
March 19, 2021
Monetary Policy, Inflation, and Distributional Impact: South Africa’s Case
Description: The South African Reserve Bank has continued to fulfill its constitutional mandate to protect the value of the local currency by keeping inflation low and steady. This paper provides evidence that monetary policy tightening aimed at maintaining low and stable inflation could at the same time reduce consumption inequality over a 12–18 month horizon, commonly understood as the transmission lag of monetary policy action to the real economy, and similar to the distance between survey waves used in the analysis. In response to “exogenous” monetary policy tightening, the real consumption of individuals at lower ends of the consumption distribution declines relatively modestly, or even increases. With greater reliance on government transfers, thus smaller reliance on labor income, and relatively larger food consumption, these individuals appear to benefit mainly from lower inflation. By contrast, the real consumption of individuals at higher ends of the consumption distribution is more likely to decline due to lower labor income, weaker asset price performance, and higher debt service cost.