Great Moderation at the Firm Level? Unconditional vs. Conditional Output Volatility
Claudia M. Buch, Jörg Döpke, K. Stahn
B.E. Journal of Economic Analysis and Policy,
No. 1,
2009
Abstract
We test whether there has been a “Great Moderation“ of output volatility at the firm level. The multifactor residual model proposed by Pesaran (2006) is used to isolate the idiosyncratic component of firms' sales growth from macroeconomic developments. This methodology is applied to a balanced panel of about 1,200 German firms covering a 35-year period (1971-2005). Our research has three main findings. First, unconditional firm-level volatility and aggregate output volatility have seen similar downward trends. Second, conditional, idiosyncratic firm-level volatility does not exhibit a downward trend. Third, there is a positive link between growth and volatility at the firm level.
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A Professor Like Me: The Influence of Instructor Gender on College Achievement
Florian Hoffmann, Philip Oreopoulos
Journal of Human Resources,
No. 2,
2009
Abstract
Many wonder whether teacher gender plays an important role in higher education by influencing student achievement and subject interest. The data used in this paper help identify average effects from male and female college students assigned to male or female teachers. We find instructor gender plays only a minor role in determining college student achievement. Nevertheless, the small effects provide evidence that gender role models matter to some college students. A same-sex instructor increases average grade performance by at most 5 percent of its standard deviation and decreases the likelihood of dropping a class by 1.2 percentage points.
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Shrinking due to corpulence? BMI in childhood predicts subsequent linear growth among US children and youth, 1963-1970
Marco Sunder
Annals of Human Biology,
2008
Abstract
While the USA is one of the most opulent countries, its population is not among the tallest but is among the most corpulent. This short report investigates the association between body mass index in childhood and subsequent change in height-for-age at the individual level, based on data from the National Health Examination Study (1963-1970). A sub-sample of participants in this survey was measured twice at intervals between 2.3 and 4.4 years, and assessed bone age can be used to account for differences in maturation at baseline. Regression results indicate that a BMI-for-age above the 85th percentile is associated with a reduction in growth by 0.03-0.06 height-for-age standard deviations per year, or roughly 1 cm within 4 years. An inefficiently high nutritional status in childhood may thus jeopardize subsequent linear growth. However, the trans-Atlantic height gap is considerably larger than what this empirical relationship could predict.
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Preventing Innovative Cooperations: The Legal Exemptions Unintended Side Effect
Christian Growitsch, Nicole Nulsch, Margarethe Rammerstorfer
IWH Discussion Papers,
No. 6,
2008
Abstract
In 2004, European competition law had been faced with considerable changes due to the introduction of the new Council Regulation No. 1/2003. One of the major renewals was the replacement of the centralized notification system for inter-company cooperations in favor of a so-called legal exemption system. We analyze the implications of this reform on the agreements firms implement. In contrast to previous research we focus on the reform’s impact on especially welfare enhancing, namely innovative agreements. We show that the law’s intention to reduce the incentive to establish illegal cartels will be reached. However, by the same mechanism, also highly innovative cooperations might be prevented. To avoid this unintended effect, we conclude that only fines but not the monitoring activities should be increased in order to deter illegal but not innovative agreements.
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An Assessment of Bank Merger Success in Germany
Michael Koetter
German Economic Review,
No. 2,
2008
Abstract
German banks have experienced a merger wave since the early 1990s. However, the success of bank mergers remains a continuous matter of debate.This paper suggests a taxonomy to evaluate post-merger performance on the basis of cost and profit efficiency (CE and PE). I identify successful mergers as those that fulfill simultaneously two criteria. First, merged institutes must exhibit efficiency levels above the average of non-merging banks. Second, banks must exhibit efficiency changes between merger and evaluation year above efficiency changes of non-merging banks. I assess the post-merger performance up to 11 years after the mergers and relate it to the transfer of skills, the adequacy to merge distressed banks and the role of geographical distance. Roughly every second merger is a success in terms of either CE or PE. The margin of success in terms of CE is narrow, as efficiency differentials between merging and non-merging banks are around 1 and 2 percentage points. PE performance is slightly larger. More importantly, mergers boost in particular the change in PE, thus indicating persistent improvements of merging banks to improve the ability to generate profits.
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FDI versus exports: Evidence from German banks
Claudia M. Buch, A. Lipponer
Journal of Banking and Finance,
No. 3,
2007
Abstract
We use a new bank-level dataset to study the FDI-versus-exports decision for German banks. We extend the literature on multinational firms in two directions. First, we simultaneously study FDI and the export of cross-border financial services. Second, we test recent theories on multinational firms which show the importance of firm heterogeneity [Helpman, E., Melitz, M.J., Yeaple, S.R., 2004. Export versus FDI. American Economic Review 94 (1), 300–316]. Our results show that FDI and cross-border services are complements rather than substitutes. Heterogeneity of banks has a significant impact on the internationalization decision. More profitable and larger banks are more likely to expand internationally than smaller banks. They have more extensive foreign activities, and they are more likely to engage in FDI in addition to cross-border financial services.
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Inflation and relative price variability in the euro area: evidence from a panel threshold model
Dieter Nautz, Juliane Scharff
Bundesbank Discussion Paper, No. 14/2006,
2006
Abstract
In recent macroeconomic theory, relative price variability (RPV) generates the
central distortions of inflation. This paper provides first evidence on the empirical
relation between inflation and RPV in the euro area focusing on threshold effects
of inflation. We find that expected inflation significantly increases RPV if inflation
is either very low (below -1.38% p.a.) or very high (above 5.94% p.a.). In the
intermediate regime, however, expected inflation has no distorting effects which
supports price stability as an outcome of optimal monetary policy.
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Signaling Currency Crises in South Africa
Tobias Knedlik
IWH Discussion Papers,
No. 19,
2006
Abstract
Currency crises episodes of 1996, 1998, and 2001 are used to identify common country specific causes of currency crises in South Africa. The paper identifies crises by the use of an Exchange Market Pressure (EMP) index as introduced by Eichengreen, Rose and Wyplosz (1996). It extends the Signals Approach introduced by Kaminsky and Reinhart (1996, 1998) by developing a composite indicator in order to measure the evolution of currency crisis risk in South Africa. The analysis considers the standard suspects from international currency crises and country specifics as identified by the Myburgh Commission (2002) and current literature as potentially relevant indicators.
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A method to evaluate peripheral retail locations considering as example the shopping area ‘Nova Eventis’
Alexander Kubis, Maria Hartmann
Wirtschaft im Wandel,
No. 6,
2006
Abstract
Der Strukturwandel im Einzelhandelsbereich führt zur Entstehung peripherer großflächiger Einzelhandelszentren. Deren Genehmigungsfähigkeit bedingt die Notwendigkeit einer sachlichen Prüfung ökonomischer Auswirkungen potentieller (neuer) Standorte. Mit diesem Beitrag wird eine geeignete Methodik zur Beantwortung dieser Problematik vorgestellt. Das entsprechende Vorgehen, das auf einem probabilistischen Gravitationsmodell beruht, wird eingehend am Beispiel einer Analyse für den Standort Nova Eventis in der Region Halle-Leipzig illustriert. Die empirische Basis stellen 1. eine Erhebung der Einzugsbereiche mittels „Licence Plate Analysis“ (PKW-Erhebung), 2. die einzelhandelsrelevanten Kaufkraft (GfK), 3. eine Distanzmatrix zwischen Kauf- und Wohnorten sowie 4. Angaben der Verkaufsfläche und absoluten Besucherzahl der einzelnen peripheren Einkaufszentren der Region dar. Aus der Analyse wird deutlich, daß die Lage (Distanz vom Kunden) und Größe (Verkaufsfläche) entscheidende Determinanten für die Einkaufswahrscheinlichkeit sind. Unter den gesetzten Annahmen kann ein Kaufkraftabfluß von rund 250 Mio. Euro p. a. aus den umliegenden Landkeisen nach Nova Eventis bestimmt werden. Mit der im Beitrag vorgestellten allgemeinen Methode wird die Möglichkeit eröffnet, ökonomische Auswirkungen der Ansiedlung peripherer Einzelhandelsstätten hinsichtlich der Verlagerung von Kaufkraftflüssen zu prognostizieren. Ausgehend von der Analyse der Kaufkraftströme der bereits bestehenden Einzelhandelsstätten wird auf die Auswirkungen des potentiellen Standortes geschlossen. Damit stellt das hier vom IWH vorgestellte Instrumentarium eine praktikable Entscheidungshilfe sowohl für die Genehmigungsbehörde als auch für das sich ansiedelnde Unternehmen dar.
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