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Do Public Bank Guarantees Affect Labor Market Outcomes? Evidence from Individual Employment and Wages

Laura Baessler, Georg Gebhardt, Reint E. Gropp, Andre Guettler, Ahmet Taskin
IWH Discussion Papers, No. 7, 2024
Abstract
We investigate whether employees in Germany benefit from public bank guarantees in terms of employment probability and wages. To that end, we exploit the removal of public bank guarantees in Germany in 2001 as a quasi-natural experiment. Our results show that bank guarantees lead to higher employment, but lower wage prospects for employees after working in affected establishments. Overall the results suggest that employees do not benefit from bank guarantees.
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Bitcoin Flash Crash on May 19, 2021: What Did Really Happen on Binance?

Tim Baumgartner, Andre Guettler
IWH Discussion Papers, No. 25, 2022
Abstract
Bitcoin plunged by 30% on May 19, 2021. We examine the outage the largest crypto exchange Binance experienced during the crash, when it halted trading for retail clients and stopped providing transaction data. We find evidence that Binance back-filled these missing transactions with data that does not conform to Benford‘s Law. The Bitcoin futures price difference between Binance and other exchanges was seven times larger during the crash period compared to a prior reference period. Data manipulation is a plausible explanation for our findings. These actions are in line with Binance aiming to limit losses for its futures-related insurance fund.
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European versus Anglo-Saxon Credit View: Evidence from the Eurozone Sovereign Debt Crisis

Marc Altdörfer, Carlos A. De las Salas Vega, Andre Guettler, Gunter Löffler
IWH Discussion Papers, No. 34, 2016
published in: Journal of International Financial Markets, Institutions and Money
Abstract
We analyse whether different levels of country ties to Europe among the rating agencies Moody’s, S&P, and Fitch affect the assignment of sovereign credit ratings, using the Eurozone sovereign debt crisis of 2009-2012 as a natural laboratory. We find that Fitch, the rating agency among the “Big Three” with significantly stronger ties to Europe compared to its two more US-tied peers, assigned on average more favourable ratings to Eurozone issuers during the crisis. However, Fitch’s better ratings for Eurozone issuers seem to be neglected by investors as they rather follow the rating actions of Moody’s and S&P. Our results thus doubt the often proposed need for an independent European credit rating agency.
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Public Bank Guarantees and Allocative Efficiency

Reint E. Gropp, Andre Guettler, Vahid Saadi
IWH Discussion Papers, No. 7, 2015
published in: Journal of Monetary Economics
Abstract
In the wake of the recent financial crisis, many governments extended public guarantees to banks. We take advantage of a natural experiment, in which long-standing public guarantees were removed for a set of German banks following a lawsuit, to identify the real effects of these guarantees on the allocation of credit (“allocative efficiency”). Using matched bank/firm data, we find that public guarantees reduce allocative efficiency. With guarantees in place, poorly performing firms invest more and maintain higher rates of sales growth. Moreover, firms produce less efficiently in the presence of public guarantees. Consistently, we show that guarantees reduce the likelihood that firms exit the market. These findings suggest that public guarantees hinder restructuring activities and prevent resources to flow to the most productive uses.
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