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Estimating gravity equations: to log or not to log?

Siliverstovs, Boriss; Schumacher, Dieter - 2007

) estimation procedure applied to the non-linear multiplicative specification of the gravity model. We use the trade flows for all …/or quantitative differences in the values of estimated coefficients as a result of application of an alternative estimation method …. Our main conclusion is that both estimation results as well as results of the regression misspecification tests provide …

Persistent link: https://www.econbiz.de/10010264979

International benchmarking in electricity distribution: a comparison of French and German utilities

Cullmann, Astrid; Crespo, Hélène; Plagnet, Marie-Anne - 2008

In this paper we present an international cross-country benchmarking analysis for utility regulation of France and Germany, the two largest electricity distribution countries in Europe. We examine the relative performance of 99 French and 77 German distribution companies operating within two...

Persistent link: https://www.econbiz.de/10010265037

Optimal income taxation of married couples: an empirical analysis of joint and individual taxation

Haan, Peter; Navarro, Dolores - 2008

In this paper we develop a discrete model of optimal taxation of married couples and empirically discuss the optimality of income taxation for this group. To this end, we derive the social welfare function which guarantees that joint taxation of married couples is optimal. We will contrast this...

Persistent link: https://www.econbiz.de/10010265042

Pro-poor growth and gender inequality

Klasen, Stephan - 2006

This paper examines to what extent gender gaps in education, health, employment, productive assets and inputs can affect pro poor growth (in the sense of increasing monetary incomes of the poor). After discussing serious methodological problems with examining gender issues in the context of an...

Persistent link: https://www.econbiz.de/10010265077

Share Buy-Backs in Germany Overreaction to Weak Signals?

Hackethal, Andreas; Zdantchouk, Alexandre - 2004

This paper investigates the magnitude and the main determinants of share price reactions to buy-back announcements of German corporations. For our comprehensive sample of 224 announcements that took place between May 1998 and April 2003 we find average cumulative abnormal returns around -7.5%...

Persistent link: https://www.econbiz.de/10010265096

Using a Bootstrap Approach to Rate the Raters

Güttler, André - 2004

This paper compares the accuracy of credit ratings of Moody's and Standard&Poor's. Based on 11,428 issuer ratings and 350 defaults in several datasets from 1999 to 2003 a slight advantage for the rating system of Moody's is detected. Compared to former research the robustness of the results is...

Persistent link: https://www.econbiz.de/10010265098

Markteintritte, Marktaustritte und Produktivität: empirische Befunde zur Dynamik in der Industrie

Wagner, Joachim - 2006

Mit einem Paneldatensatz für sämtliche niedersächsischen Industriebetriebe der Jahre 1995 bis 2002 werden drei Hypothesen aus dem Modell von Hopenhayn (Econometrica 1992) getestet: (H1) Firmen, die in der Periode t aus dem Markt ausscheiden, waren in der Periode t-1 weniger produktiv als...

Persistent link: https://www.econbiz.de/10010265100

International firm activities and innovation: evidence from knowledge production functions for German firms

Wagner, Joachim - 2006

Using a knowledge production framework and a rich set of plant level data this study demonstrates that in Germany firms that are active on international markets as exporters or foreign direct investors do generate more new knowledge than firms which sell on the national market only. These...

Persistent link: https://www.econbiz.de/10010265102

Exports, foreign direct investment and productivity: evidence from German firm level data

Wagner, Joachim - 2005

This paper presents the first empirical test with German establishment level data of a hypothesis derived by Helpman, Melitz and Yeaple in a model that explains the decision of heterogeneous firms to serve foreign markets either trough exports or foreign direct investment: only the more...

Persistent link: https://www.econbiz.de/10010265111

German works councils and productivity: first evidence from a nonparametric test

Wagner, Joachim - 2005

This paper presents the first nonparametric test whether German works councils go hand in hand with higher labor productivity or not. It distinguishes between establishments that are covered by collective bargaining or not. Results from a Kolmogorov-Smirnov test for first order stochastic...

Persistent link: https://www.econbiz.de/10010265113