ON CORPORATE FINANCE & MACROECONOMICS
Publications
Bankruptcy Resolution and Credit Cycles
with Chen Lian, Yueran Ma, Pablo Ottonello and Diego Perez
We study how the macroeconomic implications of credit cycles vary with business bankruptcy institutions. Using data on bankruptcy efficiency and business credit across countries, we document that business credit booms are followed by severe declines in output, investment, and consumption in environments with poorly functioning business bankruptcy. On the contrary, in settings with well functioning business bankruptcy, the aftermath of credit booms is characterized by moderate changes in economic activities. We use a simple model to lay out how and when efficient bankruptcy systems can mitigate the negative consequences of credit booms.

Zombies at Large? Corporate Debt Overhang and the Macroeconomy
with Òscar Jordà, Moritz Schularick and Alan Taylor
Debt overhang is associated with higher financial fragility and slower recovery from recession. However, while household credit booms have been extensively documented to have this property, we find that corporate debt does not fit the same pattern. Newly collected data on non-financial business liabilities for 18 advanced economies over the past 150 years shows that, in the aggregate, greater frictions in corporate debt resolution make for slower recoveries, with weak investment and more persistent „zombie firms“ and that this is an important factor in explaining the difference in outcomes relative to household credit booms.

Working Papers
The Safety Net: Central Bank Balance Sheets and Financial Crises
with Niall Ferguson, Paul Schmelzing and Moritz Schularick
This paper studies the evolution of central bank balance sheets over the past 400 years across 17 major economies. The size of central bank balance sheets has varied substantially over time relative to economic and financial activity. Major balance sheet expansions were initially associated with government finance in geopolitical emergencies, but over time liquidity provision during financial turmoil has become the key driver of balance sheet operations. We examine the historical record of such lender of last resort interventions with a novel identification strategy based on pre-determined ideological beliefs of acting central bank governors (“hawks” vs. “doves”) with respect to financial sector support. Using exogenous variation in the crisis response, we estimate the effects of lender of last resort operations on the economy. History shows that liquidity support during financial crises has indeed tended to stabilize the economy successfully: crises are less severe, asset prices recover more quickly, and deflation is avoided. However, there is also evidence that the provision of central bank liquidity to financial markets raises the probability of future boom-bust episodes, pointing to potential moral hazard effects of central bank intervention.
Revise and Resubmit at Journal of Political Economy

Market Creditor Protection, Finance and Investment
In contrast to traditional bank lending, bond market debt disperses the creditor base. Legal protections of dispersed market creditors can exacerbate coordination frictions and raise the cost of default. I show that market creditor protection can thus be excessive, discourage market-based lending and reduce firm investment in theory. I estimate the effects of a US court ruling which protected bond market creditors from coercive exchange offers: The ruling forced distressed firms to restructure bond market debt more frequently in costly court procedures. Healthy firms responded by cutting bond issuance and investment. Direction and magnitude of reactions indicate that over-protecting dispersed creditors can undermine public credit markets, with adverse real effects.

Credit Cycles and Creditor Rights
with Shohini Kundu and Karsten Müller
Do creditor rights amplify or dampen economic fluctuations? Using a panel of 39 countries from 1978 to 2019, we show that credit expansions in economies with strong creditor protection are followed by smaller output losses, fewer non-performing loans, and a greater reallocation of credit away from unproductive sectors. Firm-level evidence from Delaware’s adoption of antirecharacterization laws shows that well-protected creditors cut credit to low-productivity firms while easing borrowing constraints for productive ones. Overall, our findings indicate that stronger creditor rights dampen the output losses of credit booms by facilitating a more efficient reallocation of capital.

Private Firms, Public Firms and Wealth Concentration
with Moritz May
We link the cost of capital of private and public firms to household wealth allocation. We document tight co-movement between US private firms’ share in aggregate business value and US household sector wealth allocated to private businesses. US household sector wealth allocated to private businesses is driven by rich households who (i) own a large share of total household wealth while (ii) allocating disproportionate shares of their portfolio to private businesses. We quantify the role of household wealth concentration for firms’ listing decision using a calibrated general equilibrium model of heterogeneous firms and households. Counterfactual analysis attributes 70% of the decline in US public firms between the 1990s and 2010s to rising household wealth concentration. Our model also highlights how inefficient public capital market institutions can reduce welfare by curtailing households’ access to liquid saving opportunities.
ON OTHER Topics
Publications
Pandemic Consumption
with Rüdiger Bachmann and Christian Bayer
This paper examines how households adjusted their consumption behavior in response to COVID-19 infection risk during the early phase of the pandemic. We use a monthly consumption survey specifically designed by the German Statistical Office covering the second wave of COVID-19 infections from September to November 2020. Households reduced their consumption expenditures on durables and social activities by, respectively, 24 percent and 36 percent in response to one hundred extra infections per one hundred thousand inhabitants per week. The effect was concentrated among the elderly, whose mortality risk from COVID-19 infection was arguably the highest.

Kinderbonuskonsum
with Rüdiger Bachmann and Christian Bayer
To fight the pandemic recession of 2020 and alleviate socio-economic repercussions, the German government targeted transfers at families. We evaluate the policy’s consumption multiplier at the micro-level using representative data from a survey designed for that purpose. We document heterogeneity across families with different economic characteristics. The aggregate consumption multiplier might have been as large as 30% cumulated over three months. Our estimates cast doubt upon the reliability of households‘ self-reported consumption impulses, pointing to mental accounting biases. (Article in German)

Working Papers
Work in progress
Housing Duration and Regional Wealth Dynamics
with Francisco Amaral, Steffen Zetzmann and Jonas Zdrzalek
We explore how falling interest rates since 1980 have redistributed U.S. housing wealth. We estimate location-specific duration of housing assets and home equity using data on regional house prices, rents, mortgage leverage and mortgage duration. Our measures reveal substantial and persistent regional heterogeneity in the duration of housing and home equity-validated by systematic heterogeneity in house price responses to interest rate shocks. Household portfolio data suggests that households do not use financial assets to compensate interest rate risk exposure of their home equity. Finally, we confirm that regions with higher home equity duration experienced stronger wealth growth when real rates fell after the 1980s. Our estimates suggest most growth in regional wealth concentration since the 1980s can be attributed to differential housing duration.
