Working Papers
2025
March 21, 2025
Could Digital Currencies Lead to the Disappearance of Cash from the Market?
Description: Private and public agents’ plans and actions to introduce digital currencies and other innovative payment instruments could produce some unintended consequences, including the potential disappearance of physical cash. This study employs a two-sided market model to examine how payment systems might respond to new currencies. Numerical simulations indicate that the success of a new currency hinges on a large-scale launch. However, even unsuccessful attempts could disrupt existing systems, potentially resulting in the elimination of cash. If cash plays a critical role as a safeguard, regulatory and monetary authorities should give due consideration to ensure its continued availability when payment innovations are introduced.
March 21, 2025
Lost Generations? Fertility and Economic Growth in Europe
Description: The total fertility rate—the average number of births per woman—in Europe is already at 1.46, which is significantly below the replacement rate of 2.1, where fertility compensates for mortality and thereby the population replaces itself from one generation to the next. Falling fertility rates will have far-reaching social and economic consequences, and therefore it is a critical empirical exercise to estimate the impact of below-replacement fertility on income growth and test quantitatively for the existence of mitigating factors that could inform appropriate policy responses. In this paper, I address the endogeneity bias caused by reverse causality by implementing an instrumental variable approach and use exogenous variation in the comparative abortion index as an instrument for the total fertility rate. These results show that fertility has a significant positive effect on real GDP per capita growth in a sample of 42 European countries over the period 1960–2022. This means that the downward fertility transition across Europe, accompanied by fast-aging population, is a significant drag on income per capita growth.
March 14, 2025
The Insurer Channel of Monetary Policy
Description: We study the role of life insurers in the transmission of US monetary policy. Insurers have uniquely long-term liabilities. We posit that they face a trade-off between matching liability duration exposure by investing in long-term government debt and earning higher yields by shifting to risky—but shorter-term—private debt. We show that, due to this tradeoff, long-term risk free rates play a critical role in shaping insurers' demand for risky private debt. Contractionary monetary policy shocks that raise long-term risk-free rates reduce insurers' demand for private debt, raising risk premia. We use granular, high frequency data and regulatory changes to trace how insurers' investment behavior transmits monetary policy shocks to risk premia.
March 14, 2025
Interactions Between Public and Private Sector Wages and Inflation in Mongolia
Description: The substantial increase in public sector wages in Mongolia introduced in the 2023 supplementary budget has raised concerns about its potential spillover effects on private sector wages and subsequent inflationary pressures. Furthermore, both public and private sector wages have grown on average faster than labor productivity in Mongolia during 2000-2023 with substantial implications for inflation. This paper aims to empirically investigate the relationship between public sector wages, private sector wages, and inflation in Mongolia, utilizing a quarterly dataset spanning from 2000Q4 to 2023Q4. Employing a structural vector autoregression (SVAR) model, we analyze the dynamic interactions among these variables to uncover the causal relationships. The findings indicate that a shock to private sector wages exerts a stronger immediate impact on inflation, peaking within the first four quarters, while a shock to public sector wages manifests a delayed effect on inflation, peaking between the sixth and ninth quarters. Additionally, shocks to public sector wages have a small and short-lived effect on private sector wages, whereas shocks to private sector wages significantly influence public sector wages, suggesting that private sector has a more leading role in wage setting behavior. These results have important policy implications, highlighting the need for public wage policies that are closely aligned with productivity changes and can contribute to macroeconomic and price stability in Mongolia.
March 7, 2025
Extreme Weather Events, Agricultural Output, and Insurance: Evidence from South America
Description: Extreme weather has profoundly affected countries across South America (SA), given the importance of the agricultural sector for the economies. However, these effects have not yet been properly measured. In our study, we construct a unique dataset of high-frequency satellite data on temperature, precipitation, and a Normalized Difference Vegetation Index (NDVI) that proxies the agricultural yield in selected countries. In particular, we then examine the effect of droughts on agricultural yields (soy output) and find that they have a significant negative impact and that there is heterogeneity in the response across countries. While insurance could help protect farmers against severe losses, coverage in the region is low, and barriers remain high. Building on existing literature and using a calibrated structural model, we highlight the benefits of insurance for Total Factor Productivity (TFP) and offer some recommendations for its expansion.
March 7, 2025
Evaluating Historical Episodes using Shock Decompositions in the DSGE Model
Description: We present alternative methods for calculating and interpreting the influence of exogenous shocks on historical episodes within the context of DSGE models. We show analytically why different methods for calculating shock decompositions can generate conflicting interpretations of the same historical episodes. We illustrate this point using an extended version of Drautzburg and Uhlig’s (2015) model of the U.S. economy, focusing on the periods 1964–1966, 1979–1987, 2006–2009, 2016–2020 and 2020–2023. We argue that the best method for analyzing particular episodes is one which isolates the influence of the shocks during the period under consideration and where the initial conditions represent the system’s distance from balanced growth path at the beginning of the episode.
February 28, 2025
Not all Housing Cycles are Created Equal: Macroeconomic Consequences of Housing Booms
Description: This paper shows that not all housing price cycles are alike. The nature of the housing expansion phase—especially whether a housing price boom characterized by rapid and persistent house price growth is present—plays a key role in shaping the severity of the subsequent contraction, and the net macroeconomic impact over the full cycle. Analyzing 180 housing expansions across 68 countries, we classify 49 percent as housing booms, characterized by rapid and persistent real house price increases. We find that economic downturns are significantly deeper and longer when housing contractions are preceded by a housing boom. The housing contraction is more severe the more intensive the preceding housing boom, and when accompanied by a credit boom. Overall, while housing booms spur stronger economic growth during the expansion phase, their sharp reversals lead to severe housing contractions, resulting in significant net negative effects on the real economy.
February 28, 2025
Pension Reform and Stock Market Development
Description: We highlight the strong connection between developing fully-funded, individually-owned, collectively-managed, mandatory/incentivized (FICMI) pension schemes and the development of domestic stock markets. We do so by building a stylized model and complementing the analysis with cross-country empirical analysis and case studies. We also highlight the challenges of individual impatience, network externalities, and coordination failure in long-term equity investments, which are crucial for stock market development and technological innovation. We find that FICMI pension schemes—when sufficiently wide in coverage and large in size—can serve as coordination devices to support long-term equity investments. Such investments will not only promote domestic stock market development and make it easier for firms to raise long-term equity capital, therefore supporting long-term economic growth, but also enhance financial inclusion and enable more households to benefit from the overall economic development, therefore contributing to inclusive growth. Moreover, we find that the introduction of FICMI pension schemes can impact household savings in two ways: first, FICMI pension can increase household savings through “forced/incentivized” savings channel, where households save too little without FICMI pension (such as in many EMDEs); and second, FICMI pension can decrease household savings and increase household consumption by reducing non-pension savings and decreasing precautionary savings, where households save too much without FICMI pension (such as in China). In both cases, FICMI pension schemes can help move the economy closer to the optimal level of household savings, and may also help improve the structure of such savings. Finally, we discuss the enabling conditions (such as a strong political commitment to the reform and a well-designed fiscal strategy for financing the transition) and policy design for FICMI pension schemes.
February 28, 2025
Monetary Policy and Inflation Expectations: High-Frequency Evidence from Brazil
Description: We investigate the impact of high frequency monetary policy shocks in Brazil using daily data and Rigobon’ s identification via heteroskedasticity. We show that positive changes in interest rates cause inflation expectations to decline and the exchange rate to appreciate. To the best of our knowledge, this is the first paper to study how monetary policy affects inflation expectations in an emerging economy using high frequency identification techniques.
February 21, 2025
Understanding the Macroeconomic Effects of Natural Disasters
Description: Climate change is causing more frequent and devastating natural disasters. The goal of this paper is two-fold. First, it examines the dynamic effects of natural disasters on the growth of output and its components. Government expenditure in advanced economies (AEs) rises immediately in the same year of the natural disaster, offsetting the decline in private investment growth and thereby mitigating the negative effect on output growth. As a result, output growth in AEs is not significantly affected by natural disasters. In contrast, the increase in government expenditure in emerging markets and developing countries (EMDEs) after a natural disaster is smaller and thus, unable to mitigate the contemporaneous negative effect on output growth (which mainly reflects the fall in investment in non-small-island EMDEs and in net exports in small-island EMDEs). In addition, the output recovery in the subsequent year does not fully offset the decline during the year of the disaster. Second, this paper assesses the role of pre-existing country characteristics in mitigating the adverse impact of natural disasters. The paper finds that small islands and countries with limited pre-disaster fiscal space tend to experience more significant declines in output growth following a natural disaster.