Correlation Scenarios and Correlation Stress Testing
Natalie Packham, Fabian Wöbbeking
Journal of Economic Behavior and Organization,
January
2023
Abstract
We develop a general approach for stress testing correlations of financial asset portfolios. The correlation matrix of asset returns is specified in a parametric form, where correlations are represented as a function of risk factors, such as country and industry factors. A sparse factor structure linking assets and risk factors is built using Bayesian variable selection methods. Regular calibration yields a joint distribution of economically meaningful stress scenarios of the factors. As such, the method also lends itself as a reverse stress testing framework: using the Mahalanobis distance or Highest Density Regions (HDR) on the joint risk factor distribution allows to infer worst-case correlation scenarios. We give examples of stress tests on a large portfolio of European and North American stocks.
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Konjunktur aktuell: Keine tiefe Rezession trotz Energiekrise und Zinsanstieg
Konjunktur aktuell,
No. 4,
2022
Abstract
Der Ausblick auf die internationale Konjunktur 2023 ist verschattet: Die Energieversorgung Europas ist ungewiss, die Leitzinsen steigen weiter, der Pandemieausbruch in China führt zu Produktionsausfällen. Belastungen für die deutsche Wirtschaft kommen von hohen Energiepreisen und einem verschlechterten Finanzierungsumfeld. Bislang ist die Konjunktur robust, die Produktion hat bis in den Herbst hinein expandiert. Ab dem Frühjahr wird sie gestützt durch die weitere Entspannung der Lieferketten und eine Belebung der Weltwirtschaft. Das BIP dürfte 2022 in den ersten drei Quartalen um 1,8% zugenommen haben, den Winter über leicht sinken und 2023 insgesamt stagnieren (Ostdeutschland: 1,8% und 0,2%). Die Inflation geht nach 7,8% im Jahr 2022 auf 6,5% im Jahr 2023 zurück.
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Wirtschaftswachstum, Staatsfinanzen und Treibhausgas-Emissionen in der mittleren Frist
Katja Heinisch, Oliver Holtemöller, Axel Lindner, Alessandro Sardone, Götz Zeddies
Konjunktur aktuell,
No. 4,
2022
Abstract
Die mittelfristige Projektion der gesamtwirtschaftlichen Lage in Deutschland beinhaltet, dass das Wirtschaftswachstum mit 1% pro Jahr in den kommenden sechs Jahren in etwa genauso hoch ausfällt wie in den vergangenen sechs Jahren. Der Staatshaushalt bleibt im Defizit, aber der Schuldenstand geht relativ zum Bruttoinlandsprodukt ab dem Jahr 2024 wieder zurück. Bei diesem Tempo der wirtschaftlichen Expansion werden die Emissionen mittelfristig zwar weiter zurückgehen, aber deutlich langsamer als nötig, um die nationalen Klimaschutzziele zu erreichen.
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Trust and Contracting with Foreign Banks: Evidence from China
Desheng Yin, Iftekhar Hasan, Liuling Liu, Haizhi Wang
Journal of Asian Economics,
December
2022
Abstract
We empirically investigate whether firms doing business in regions characterized as having high social trust receive preferential treatment on loan contractual terms by foreign banks. Tracing cross-border syndicated lending activities in China, we document that firms located in provinces with higher social trust scores obtain significantly low costs of bank loans and experience less stringent collateral requirement. To address the potential endogeneity issues, we adopt an instrumental variable approach and a two-sided matching model, and report consistent results. We also estimate a system of three equations through three-stage-least square estimator to accommodate the joint determination of price and non-price terms in loan contracts. In addition, we find that the effect of social trust on cost of bank loans is more prominent for firms located in provinces with relatively less developed formal institutions.
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IWH-Tarif-Check: Trotz kräftig steigender Tariflöhne in der Metall- und Elektroindustrie realer Netto-Lohnverlust im Jahr 2023
Oliver Holtemöller, Birgit Schultz
IWH-Tarif-Check,
No. 1,
2022
Abstract
Nach mehrjähriger pandemiebedingter Pause wieder reguläre Tariflohnerhöhungen für die Beschäftigten in der Metall- und Elektroindustrie
Die Tarifvertragsparteien in der Metall- und Elektroindustrie haben sich erstmalig seit der Corona-Pandemie auf eine Stufenerhöhung der Tariflöhne in Höhe von 5,2% ab Juni 2023 und von 3,3% ab Mai 2024 geeinigt. Zusätzlich wurden zwei lohnsteuer- und sozialversicherungsabgabenfreie Inflationsausgleichsprämien von jeweils 1 500 Euro vereinbart, die zu Beginn des Jahres 2023 und 2024 gezahlt werden. Der Tarifvertrag läuft bis Ende September 2024. Auch gibt es ab dem Jahr 2023 einen Anstieg des bereits früher vereinbarten jährlich gezahlten Zusatzentgelts.
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Hedge Fund Activism and Internal Control Weaknesses
David Folsom, Iftekhar Hasan, Yinjie (Victor) Shen, Fuzhao Zhou
China Accounting and Finance Review,
No. 4,
2022
Abstract
Purpose: The aim of the paper is to investigate the associations between hedge fund activism and corporate internal control weaknesses.
Design/methodology/approach: In this paper, the authors identify hedge fund activism events using 13D filings and news search. After matching with internal control related information from Audit Analytics, the authors utilize ordinary least square (OLS) and propensity score matching (PSM) to analyze the data.
Findings: The authors find that after hedge fund activism, target firms report additional internal control weaknesses, and these identified internal control weaknesses are remediated in subsequent years, leading to better financial-reporting quality.
Originality/value: The findings indicate that both managers and activists have incentives to develop a stronger internal control environment after targeting.
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Measuring Market Expectations
Christiane Baumeister
Handbook of Economic Expectations,
November
2022
Abstract
Asset prices are a valuable source of information about financial market participants' expectations about key macroeconomic variables. However, the presence of time-varying risk premia requires an adjustment of market prices to obtain the market's rational assessment of future price and policy developments. This paper reviews empirical approaches for recovering market-based expectations. It starts by laying out the two canonical modeling frameworks that form the backbone for estimating risk premia and highlights the proliferation of risk pricing factors that result in a wide range of different asset-price-based expectation measures. It then describes a key methodological innovation to evaluate the empirical plausibility of risk premium estimates and to identify the most accurate market-based expectation measure. The usefulness of this general approach is illustrated for price expectations in the global oil market. Then, the paper provides an overview of the body of empirical evidence for monetary policy and inflation expectations with a special emphasis on market-specific characteristics that complicate the quest for the best possible market-based expectation measure. Finally, it discusses a number of economic applications where market expectations play a key role for evaluating economic models, guiding policy analysis, and deriving shock measures.
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The Effect of Firm Subsidies on Credit Markets
Aleksandr Kazakov, Michael Koetter, Mirko Titze, Lena Tonzer
IWH Discussion Papers,
No. 24,
2022
Abstract
We use granular project-level information for the largest regional economic development program in German history to study whether government subsidies to firms affect the quantity and quality of bank lending. We combine the universe of recipient firms under the Improvement of Regional Economic Structures program (GRW) with their local banks during 1998-2019. The modalities of GRW subsidies to firms are determined at the EU level. Therefore, we use it to identify bank outcomes. Banks with relationships to more subsidized firms exhibit higher lending volumes without any significant differences in bank stability. Subsidized firms, in turn, borrow more indicating that banks facilitate regional economic development policies.
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Konjunktur aktuell: Energiekrise in Deutschland
Konjunktur aktuell,
No. 3,
2022
Abstract
Im Spätsommer 2022 ist die Weltwirtschaft im Abschwung. Die US-Notenbank und weitere Zentralbanken haben aufgrund der hohen Inflation mit der Straffung ihrer Geldpolitik begonnen, die chinesische Konjunktur schwächelt, und Europa kämpft mit einer Energiekrise. Die deutsche Wirtschaft steht aufgrund der stark steigenden Energiekosten vor einer Rezession. Das deutsche Bruttoinlandsprodukt wird im Jahr 2022 um 1,1% zunehmen und im Jahr 2023 um 1,4% sinken. Die Verbraucherpreise steigen im Jahr 2022 um 7,9% und im Jahr 2023 um 9,5%.
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Identifying Rent-sharing Using Firms‘ Energy Input Mix
Matthias Mertens, Steffen Müller, Georg Neuschäffer
IWH Discussion Papers,
No. 19,
2022
Abstract
We present causal evidence on the rent-sharing elasticity of German manufacturing firms. We develop a new firm-level Bartik instrument for firm rents that combines the firms‘ predetermined energy input mix with national energy carrier price changes. Reduced-form evidence shows that higher energy prices depress wages. Instrumental variable estimation yields a rent-sharing elasticity of approximately 0.20. Rent-sharing induced by energy price variation is asymmetric and driven by energy price increases, implying that workers do not benefit from energy price reductions but are harmed by price increases. The rent-sharing elasticity is substantially larger in small (0.26) than in large (0.17) firms.
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