Working Papers

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2024

September 20, 2024

Satellite-Based Census of Residential Buildings: Application for Climate Risk Assessment

Description: Housing represents the largest asset and liability, in the form of mortgages, on most national balance sheet. For most households it is their largest investment, and when mortgages are required also represents the largest component of household debt. It is also directly tied to financial markets, both the mortgage market and insurance sector. Although many countries have a rich set of housing censuses and statistics, others have large data gap in this area and therefore struggle to formulate effective policies. This paper proposes an approach to construct a global census of residential buildings using opensource satellite data. Such a layer can be used to assess the extent these buildings are exposed to climate hazards and how their production and consumption, in turn, affect the climate. The approach we propose could be scaled globally, combining existing layers of building footprints, climate and socioeconomic data. It adds to the ongoing effort of compiling spatially explicit and granular climate indicators to better inform policies. As a case study, we compute selected indicators and estimate the extent of residential properties exposure to riverine flood risk for Kenya.

September 20, 2024

Systemic Implications of Financial Inclusion

Description: This study contributes to the literature by analyzing the impact of financial inclusion (FI) on various bank risk dimensions, including systemic risk, which has been underexplored. We expand on recent research by examining not only the type of financial services, but also the source of FI, particularly the role of non-commercial banks (NCB). Our findings reveal that contrary to developed countries, credit expansions are linked to lower commercial banking risks, underscoring the benefits of loan diversification in developing and emerging economies,. However, while FI in deposits generally reduces individual banking risks, its effect on systemic risk is weaker in these countries, likely due to limited asset diversification. Moreover, NCBs tend to increase systemic and idiosyncratic risks for commercial banks through competitive pressures in the loan and deposit markets. Our results suggest that coordinating macroprudential policies with credit developments further reduces systemic risk by discouraging excessive risk-taking when banks’ capital is more at stake. Banks with stronger Basel capital ratios show reduced idiosyncratic risks, yet there is evidence that banks may relax these ratios to accommodate lending demands. These insights underscore the necessity for regulators to synchronize macroprudential policies with FI developments and consider NCBs’ role in financial stability.

September 20, 2024

Rising Temperature, Nuanced Effects: Evidence from Seasonal and Sectoral Data

Description: Using quarterly temperature and sectoral value-added data for a large sample of advanced economies (AEs) and emerging markets and developing economies (EMDEs), this paper uncovers nuanced effects of temperature on economic activity. For EMDEs, hotter spring and summer temperatures reduce growth in real value-added of manufacturing, and most significantly, of agriculture, while a warmer winter boosts it. For advanced countries (AEs), a hotter spring hurts growth in real value-added of all considered sectors: services, manufacturing and agriculture. For both country groups, the negative effect of a hotter spring is larger and more persistent than the positive effect of a warmer winter. Furthermore, the adverse impacts of hotter temperatures in advanced economies have accentuated in recent decades. This result suggests increased vulnerability to rising temperatures.

September 20, 2024

Navigating Minefields and Headwinds: National Security, Demographic Shifts, Climate Change and Fiscal Policy in Lithuania

Description: Lithuania’s immediate fiscal challenges are national security and higher costs of borrowing, but fiscal prospects are further exacerbated by long-term pressures stemming from climate change and a shrinking and aging population. The country has experienced a rapidly decreasing population—from 3.7 million in 1991 to 2.8 million in 2023—and its old-age dependency ratio is consequently expected to increase from 33 percent in 2023 to 53.4 percent by 2050. The resulting long-term spending pressures are projected to amount to as much as 11.2 percent of GDP, which is about 30 percent of the current level of spending. Debt sustainability concerns would not allow financing additional spending with more debt. Hence, a comprehensive strategy will help address these long-term fiscal challenges, including tax policy changes to raise additional revenue while primarily reducing expenditure needs through pension and healthcare reforms.

September 20, 2024

Fiscal Risk Sharing in China: Is It Significant and How to Further Improve It?

Description: The COVID-19 pandemic has weakened the fiscal positions of local governments in China, while the recent stress in the Chinese property market has further compounded this issue, calling for stronger fiscal risk sharing among provinces. This paper examines the existing central to local governmental transfer system and its effect on interprovincial risk sharing and redistribution in China. We show that the fiscal transfers have played an important role in risk sharing although their main purpose is still redistribution. We also propose an alternative transfer mechanism with the size of transfers to each province linked to the shocks that the province is facing to enhance the fiscal risk-sharing effect. Using counterfactual simulations, we show that such an alternative mechanism can significantly enhance risk sharing among all provinces against idiosyncratic shocks while maintaining a comparable level of redistribution effect. Intergovernmental reforms and other structural measures could also be considered to further improve policy efficiency and effectiveness.

September 16, 2024

Fiscal Discourse and Fiscal Policy

Description: We study the supply of fiscal ideas leveraging thousands of electoral platforms from 65 countries in the Manifesto Project to link how political parties discuss fiscal policy with fiscal outcomes. We provide three sets of results. First, fiscal discourse has become increasingly favourable to higher government spending since at least the 1990s in advanced and emerging economies and across the political spectrum. This pattern does not track survey trends in voter preferences, suggesting that parties have played a role in shifting the focus of political campaigns to fiscal issues to win over voters. Second, fiscal discourse turns conservative under more adverse fiscal conditions, including in the aftermath of debt surges and after the adoption of fiscal rules, but only to a limited extent. Third, over the medium-run, relative discourse changes in favor of government expansion and away from fiscal restraint are followed by higher fiscal deficits. Together, our results suggest that adverse shifts in the supply of fiscal ideas could add to fiscal pressures over time.

September 13, 2024

Climate Policy Diffusion Across US States

Description: Climate policy at the subnational level is sometimes framed as being counterproductive, because climate change is considered a collective action problem that can be best addressed in a coalition that should be as large as possible. Using comprehensive data from US states on climate policy and policy outcomes, we show that state-level policy is effective in accelerating the adoption of solar energy. Crucially, however, state policies also have positive spillovers to other states, by making it more likely that neighboring states adopt climate policy as well. By proportionally attributing the spillover effects, we find that many US states achieve more climate benefits through the spillovers to other states than within their own jurisdiction. In a further step, we distinguish between climate policies in the energy sector and policies addressed either at other sectors or greenhouse gas emission (GHG) reductions generally. We find that climate policies in the energy sector are distinct from other climate policies in two ways: They have a significant effect on solar capacity growth and they diffuse more broadly.

September 13, 2024

Beyond the Dikes: Flood Scenarios for Financial Stability Risk Analysis

Description: We assess financial stability risks from floods in the Netherlands using a comprehensive set of flood scenarios considering different factors including geographical regions, flood types, climate conditions, return periods, and adaptation. The estimated damage from each flood scenario is used to calibrate the corresponding macro-financial scenario for bank stress tests. Our results show the importance of considering these heterogeneous factors when conducting physical climate risk stress tests, as the impact of floods on bank capital varies significantly by scenario. We find that climate change amplifies the adverse impact on banks’ capital, but stronger flood defenses in the Netherlands can help mitigate some impacts. Further, we find a non-linear relationship between flood damages and banks’ capital depletion, highlighting the importance of considering extreme scenarios.

September 13, 2024

A Gravity Model of Geopolitics and Financial Fragmentation

Description: Do geopolitical tensions between countries influence the cross-border asset allocation of investment funds? Our answer is yes. We estimate gravity models and find that investment funds allocate smaller shares of their portfolios to recipient countries that are geopolitically more distant to their country of origin—with geopolitical distance measured by dissimilarity in countries’ voting behavior in the United Nations General Assembly. We also find an investment diversion effect: a recipient country attracts additional investments when its source countries get geopolitically more distant to third-party countries. These results are robust to instrumenting geopolitical distance and using alternative distance measures.

September 13, 2024

Aggregate Shocks and the Formation of Preferences and Beliefs

Description: A growing body of work has shown that aggregate shocks affect the formation of preferences and beliefs. This article reviews evidence from sociology, social psychology, and economics to assess the relevance of aggregate shocks, whether the period in which they are experienced matters, and whether they alter preferences and beliefs permanently. We review the literature on recessions, inflation experiences, trade shocks, and aggregate non-economic shocks including migrations, wars, terrorist attacks, pandemics, and natural disasters. For each aggregate shock, we discuss the main empirical methodologies, their limitations, and their comparability across studies, outlining possible mechanisms whenever available. A few conclusions emerge consistently across the reviewed papers. First, aggregate shocks impact many preferences and beliefs, including political preferences, risk attitudes, and trust in institutions. Second, the effect of shocks experienced during young adulthood is stronger and longer lasting. Third, negative aggregate economic shocks generally move preferences and beliefs to the right of the political spectrum, while the effects of non-economic adverse shocks are more heterogeneous and depend on the context.

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