Evaluating the German (New Keynesian) Phillips Curve
Rolf Scheufele
North American Journal of Economics and Finance,
2010
Abstract
This paper evaluates the New Keynesian Phillips curve (NKPC) and its hybrid variant within a limited information framework for Germany. The main interest resides in the average frequency of price re-optimization by firms. We use the labor income share as the driving variable and consider a source of real rigidity by allowing for a fixed firm-specific capital stock. A GMM estimation strategy is employed as well as an identification robust method based on the Anderson–Rubin statistic. We find that the German Phillips curve is purely forward-looking. Moreover, our point estimates are consistent with the view that firms re-optimize prices every 2–3 quarters. These estimates seem plausible from an economic point of view. But the uncertainties around these estimates are very large and also consistent with perfect nominal price rigidity, where firms never re-optimize prices. This analysis also offers some explanation as to why previous results for the German NKPC based on GMM differ considerably. First, standard GMM results are very sensitive to the way in which orthogonality conditions are formulated. Further, model mis-specifications may be left undetected by conventional J tests. This analysis points out the need for identification robust methods to get reliable estimates for the NKPC.
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Money and Inflation: The Role of Persistent Velocity Movements
Makram El-Shagi, Sebastian Giesen
Abstract
While the long run relation between money and inflation is well established, empirical evidence on the adjustment to the long run equilibrium is very heterogeneous. In the present paper we use a multivariate state space framework, that substantially expands the traditional vector error correction approach, to analyze the short run impact of money on prices. We contribute to the literature in three ways: First, we distinguish changes in velocity of money that are due to institutional developments and thus do not induce inflationary pressure, and changes that reflect transitory movements in money demand. This is achieved with a newly developed multivariate unobserved components decomposition. Second, we analyze whether the high volatility of the transmission from monetary pressure to inflation follows some structure, i.e., if the parameter regime can assumed to be constant. Finally, we use our model to illustrate the consequences of the monetary policy of the Fed that has been employed to mitigate the impact of the financial crisis, simulating different exit strategy scenarios.
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Macroeconomic Shocks and Banks' Foreign Assets
Claudia M. Buch, K. Carstensen, A. Schertler
Journal of Money, Credit and Banking,
No. 1,
2010
Abstract
Recent developments in international financial markets have highlighted the role of banks in the transmission of shocks across borders. We employ dynamic panel methods for a sample of OECD countries to analyze whether banks' foreign assets react to macroeconomic shocks at home and abroad. We find that banks reduce their foreign assets in response to a relative increase in domestic interest rates, and they increase their foreign assets when the growth rate of world energy prices rises. The responses are characterized by a temporal overshooting and a dynamic adjustment process that extends over several quarters.
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Monopsonistic Labour Markets and the Gender Pay Gap: Theory and Empirical Evidence
Boris Hirsch
Lecture Notes in Economics and Mathematical Systems,
No. 639,
2010
Abstract
This book investigates models of spatial and dynamic monopsony and their application to the persistent empirical regularity of the gender pay gap. Theoretically, the main conclusion is that employers possess more monopsony power over their female employees if women are less driven by pecuniary considerations in their choice of employers than men. Employers may exploit this to increase their profits at the detriment of women’s wages. Empirically, it is indeed found that women’s labour supply to the firm is less wage-elastic than men’s and that at least a third of the gender pay gap in the data investigated may result from employers engaging in monopsonistic discrimination. Therefore, a monopsonistic approach to gender discrimination in the labour market clearly contributes to the economic understanding of the gender pay gap. It not only provides an intuitively appealing explanation of the gap from standard economic reasoning, but it is also corroborated by empirical observation.
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Subsidized Vocational Training: Stepping Stone or Trap? An Evaluation Study for East Germany
Eva Dettmann, Jutta Günther
IWH Discussion Papers,
No. 21,
2009
Abstract
The aim of this paper is to analyze whether the formally equal qualifications acquired during a subsidized vocational education induce equal employment opportunities compared to regular vocational training. Using replacement matching on the basis of a statistical distance function, we are able to control for selection effects resulting from different personal and profession-related characteristics, and thus, to identify an unbiased effect of the public support. Besides the ‘total effect’ of support, it is of special interest if the effect is stronger for subsidized youths in external training compared to persons in workplace-related training. The analysis is based on unique and very detailed data, the Youth Panel of the Halle Centre for Social Research (zsh).
The results show that young people who successfully completed a subsidized vocational education are disadvantaged regarding their employment opportunities even when controlling for personal and profession-related influences on the employment prospects. Besides a quantitative effect, the analysis shows that the graduates of subsidized training work in slightly worse (underqualified) and worse paid jobs than the adolescents in the reference group. The comparison of both types of subsidized vocational training, however, does not confirm the expected stronger effect for youths in external vocational education compared to workplace-related training.
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Innovation and Skills from a Sectoral Perspective: A Linked Employer-Employee Analysis
Lutz Schneider, Jutta Günther, Bianca Brandenburg
Economics of Innovation and New Technology,
2010
Abstract
Natur- und ingenieurwissenschaftliche Fähigkeiten sowie Management- und Führungskompetenzen werden häufig als Quelle von betrieblichen Innovationsaktivitäten betrachtet. Der vorliegende Artikel untersucht die Rolle von Humankapital im Sinne des formalen Bildungsabschlusses und des tatsächlich ausgeübten Berufes für die betriebliche Innovationstätigkeit im Rahmen eines Probit-Ansatzes, wobei zwischen sektoralen Innovationsregimen unterschieden wird. Die Analyse basiert auf einem Mikrodatensatz deutscher Betriebe (LIAB), welcher detaillierte Informationen über die Innovationsaktivitäten und die Qualifikation der Beschäftigten, verstanden als formaler Ausbildungsabschluss, ausgeübter Beruf und Erfahrung, enthält. Es zeigen sich signifikante Unterschiede der Humankapitalausstattung zwischen Sektoren, welche nach der Pavitt-Klassifikation unterschieden wurden. Sektoren mit einem hohen Anteil hochqualifizierter Beschäftigter sind überdurchschnittlich oft unter den Produktinnovatoren zu finden (spezialisierte Zulieferer und wissenschaftsbezogene Branchen). Indes lassen sich in den realisierten Regressionen keine signifikant positiven Effekte der Beschäftigtenqualifikation auf die Innovationstätigkeit eines Betriebes nachweisen.
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The Gender Pay Gap under Duopsony: Joan Robinson meets Harold Hotelling
Boris Hirsch
Scottish Journal of Political Economy,
No. 5,
2009
Abstract
This paper presents an alternative explanation of the gender pay gap resting on a simple Hotelling-style duopsony model of the labour market. Since there are only two employers, equally productive women and men have to commute and face travel cost to do so. We assume that some women have higher travel cost, e.g., due to more domestic responsibilities. Employers exploit that women on average are less inclined to commute and offer lower wages to all women. Since women's firm-level labour supply is for this reason less wage-elastic, this model is in line with Robinson's explanation of wage discrimination.
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Produktivität – Alters- vs. Erfahrungseffekte
Lutz Schneider
Alterung und Arbeitsmarkt. Beiträge zur Jahrestagung 2007. Schriftenreihe der Deutschen Gesellschaft für Demographie, Band 3,
2008
Abstract
Angesichts der sich abzeichnenden Alterung der Erwerbsfähigen in Deutschland sowie der unzureichenden Arbeitsmarktchancen Älterer stellt sich die Frage, welchen Einfluss das Lebensalter, aber auch die akkumulierte Erfahrung auf die Produktivität von Beschäftigten ausübt. Kognitionswissenschaftliche Ansätze sprechen für negative Alterseffekte, welche durch die mit dem Alter verbundenen Erfahrungsgewinne – zumindest teilweise – kompensiert werden können. Zur Überprüfung dieser These wird der Linked-Employer-Employee-Datensatz des Instituts für Arbeitsmarkt- und Berufsforschung (LIAB) herangezogen. Auf der Basis einer betrieblichen Produktionsfunktion wird mittels regressionsanalytischer Methoden getestet, ob und wie sich Alter und Erfahrung der Beschäftigten eines Betriebs auf dessen Produktivität auswirken. Die Analyse beschränkt sich auf das Verarbeitende Gewerbe, es wird zwischen Lowtech- und Hightech-Sektor unterschieden.
Die realisierten Schätzungen für den Zeitraum von 2000 bis 2003 liefern klare Belege für einen umgekehrt u-förmigen Alters-Produktivitäts-Verlauf. Die mittlere Gruppe der 30- bis 50-Jährigen erbringt den höchsten, die Gruppe der über 50-Jährigen den geringsten Produktivitätsbeitrag. Erfahrungsakkumulation fördert die Leistung, indes zeigt sich, dass dieser Effekt zu schwach ist, um die negativen Alterseffekte zu kompensieren.
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Inflation Expectations: Does the Market Beat Professional Forecasts?
Makram El-Shagi
IWH Discussion Papers,
No. 16,
2009
Abstract
The present paper compares expected inflation to (econometric) inflation forecasts
based on a number of forecasting techniques from the literature using a panel of
ten industrialized countries during the period of 1988 to 2007. To capture expected
inflation we develop a recursive filtering algorithm which extracts unexpected inflation from real interest rate data, even in the presence of diverse risks and a potential Mundell-Tobin-effect.
The extracted unexpected inflation is compared to the forecasting errors of ten
econometric forecasts. Beside the standard AR(p) and ARMA(1,1) models, which
are known to perform best on average, we also employ several Phillips curve based approaches, VAR, dynamic factor models and two simple model avering approaches.
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