Spillover Effects among Financial Institutions: A State-dependent Sensitivity Value-at-Risk Approach
Z. Adams, R. Füss, Reint E. Gropp
Abstract
In this paper, we develop a state-dependent sensitivity value-at-risk (SDSVaR) approach that enables us to quantify the direction, size, and duration of risk spillovers among financial institutions as a function of the state of financial markets (tranquil, normal, and volatile). Within a system of quantile regressions for four sets of major financial institutions (commercial banks, investment banks, hedge funds, and insurance companies) we show that while small during normal times, equivalent shocks lead to considerable spillover effects in volatile market periods. Commercial banks and, especially, hedge funds appear to play a major role in the transmission of shocks to other financial institutions. Using daily data, we can trace out the spillover effects over time in a set of impulse response functions and find that they reach their peak after 10 to 15 days.
Read article
Greater Efficiency through More Competition in the Health Care Sector?
Ingmar Kumpmann
WSI-Mitteilungen,
No. 4,
2012
Abstract
More competition among health insurers is often recommended as a means towards enhancing efficiency in the health care sector. In this paper the effects of competition among health insurers on costs and quality of medical services are discussed. It is argued that if insurers competed with each other, costs would not decrease - on the contrary, they would increase since competing organisations are less capable of counterbalancing the strong market position of health care providers than the state or a cartel of health insurers. In addition, competition may lead to a segmentation of the market: on the one hand insurers with low premiums who only offer access to rather unpopular physicians. On the other hand insurers who guarantee free choice of medical practitioners but have higher premiums. A restriction of the free choice of medical practitioners weakens competition among physicians for patients.
Read article
East Germany: Number of Employees Subject to Social Insurance Will Continue to Increase
Hans-Ulrich Brautzsch
Wirtschaft im Wandel,
No. 11,
2011
Abstract
In 2011 the employment situation in East Germany has again improved. Approximately half of the employment growth is attributable to the industry (incl. construction). Registered unemployment declined considerably. Labor supply decreased like in recent years. In forecasting horizon the number of employees subject to social insurance will still increase despite of lower economic growth. The unemployment rate will amount to 11.0% in 2011 and to 10.9% in 2012.
Read article
The Role of Securitization in Bank Liquidity and Funding Management
Elena Loutskina
Journal of Financial Economics,
No. 3,
2011
Abstract
This paper studies the role of securitization in bank management. I propose a new index of “bank loan portfolio liquidity” which can be thought of as a weighted average of the potential to securitize loans of a given type, where the weights reflect the composition of a bank loan portfolio. I use this new index to show that by allowing banks to convert illiquid loans into liquid funds, securitization reduces banks' holdings of liquid securities and increases their lending ability. Furthermore, securitization provides banks with an additional source of funding and makes bank lending less sensitive to cost of funds shocks. By extension, the securitization weakens the ability of the monetary authority to affect banks' lending activity but makes banks more susceptible to liquidity and funding crisis when the securitization market is shut down.
Read article
Competition, Risk-shifting, and Public Bail-out Policies
Reint E. Gropp, H. Hakenes, Isabel Schnabel
Review of Financial Studies,
No. 6,
2011
Abstract
This article empirically investigates the competitive effects of government bail-out policies. We construct a measure of bail-out perceptions by using rating information. From there, we construct the market shares of insured competitor banks for any given bank, and analyze the impact of this variable on banks' risk-taking behavior, using a large sample of banks from OECD countries. Our results suggest that government guarantees strongly increase the risk-taking of competitor banks. In contrast, there is no evidence that public guarantees increase the protected banks' risk-taking, except for banks that have outright public ownership. These results have important implications for the effects of the recent wave of bank bail-outs on banks' risk-taking behavior.
Read article
Retirement Income Systems in Middle and Eastern Europe: Between Change and Continuity
Martina Kämpfe, Ingmar Kumpmann
Wirtschaft im Wandel,
No. 5,
2011
Abstract
During the process of transition the Middle and Eastern European Countries introduced pension insurance plans on a Pay-as-you-go-basis following the Western European pattern. Rising financing problems caused by increasing unemployment as well as the demographic change led to the awareness of the need of reform. Hence in most of these countries mandatory funded pension schemes were established. This way proved to be costly since the actual active generation has to simultaneously finance both the new capital stock and the pensions of today’s retirees. The financial crisis revealed the vulnerability of funded pension plans. On this background especially Poland and Hungary partly roll back their reforms. In the Czech Republic whose pension plans were not harmed by the financial crisis the government plans to support private pension schemes increasingly. Bearing in mind the recent experiences it is recommendable to build up funded pension schemes very carefully and slowly. A further weakening of pension plans on a Pay-as-you-go basis is not advisable.
Read article
The Political Setting of Social Security Contributions in Europe in the Business Cycle
Toralf Pusch, Ingmar Kumpmann
IWH Discussion Papers,
No. 4,
2011
Abstract
Social security revenues are influenced by business cycle movements. In order to
support the working of automatic stabilizers it would be necessary to calculate social insurance contribution rates independently from the state of the business cycle. This paper investigates whether European countries set social contribution rates according to such a rule. By means of VAR estimations, country-specific effects can be analyzed – in contrast to earlier studies which used a panel design. As a result, some countries under investigation seem to vary their social contribution rates in a procyclical way.
Read article
Works Councils and Separations: Voice, Monopoly, and Insurance Effects
Boris Hirsch, Thorsten Schank, Claus Schnabel
Industrial Relations,
No. 4,
2010
Abstract
Using a large linked employer–employee data set for Germany, we find that the existence of a works council is associated with a lower separation rate to employment, in particular for workers with low tenure. While works council monopoly effects show up in all specifications, clear voice effects are only visible for low tenured workers. Works councils also reduce separations to nonemployment, and this impact is more pronounced for men. Insurance effects only show up for workers with tenure of more than 2 years. Our results indicate that works councils to some extent represent the interests of a specific clientele.
Read article
The Determinants of Bank Capital Structure
Reint E. Gropp, Florian Heider
Review of Finance,
No. 4,
2010
Abstract
The paper shows that mispriced deposit insurance and capital regulation were of second-order importance in determining the capital structure of large U.S. and European banks during 1991 to 2004. Instead, standard cross-sectional determinants of non-financial firms’ leverage carry over to banks, except for banks whose capital ratio is close to the regulatory minimum. Consistent with a reduced role of deposit insurance, we document a shift in banks’ liability structure away from deposits towards non-deposit liabilities. We find that unobserved time-invariant bank fixed-effects are ultimately the most important determinant of banks’ capital structures and that banks’ leverage converges to bank specific, time-invariant targets.
Read article
Folgen des Wettbewerbs zwischen Krankenversicherungen für die Kosten im Gesundheitswesen
Ingmar Kumpmann
Gesundheitspolitik, Wettbewerb und Gesundheitssystemforschung. DIBOGS-Beiträge zur Gesundheitsökonomie und Sozialpolitik Bd. 3,
2009
Abstract
In this study it is argued that competition among health insurers can bring about higher costs in the health care sector. Medical services are inhomogeneous goods; thus the competition between physicians can be modeled by Chamberlins concept of monopolistic competition. The physicians have a strong bargaining power face to face a multitude of competing health insurers acting as purchasers of health care services. The costs can be lower if the physicians’ strong position is compensated by a monopolistic health insurer. Two case studies show the applicability of the argument. A regression analysis confirms the correlation between (public) monopolistic health insurer and lower costs in the health care sector.
Read article