In the past, many countries have witnessed de-diversification waves. In this paper we illustrate that the same phenomenon can be observed in Germany. We discuss different theoretical explanations for the occurrence of de-diversification: the predominant agency theory approach and the less common...

In their constructive critique Weller, Mellewigt, and Decker elaborate some concerns on our paper on “De-Diversification activities of german corporations from 1988 to 2002: Perspectives from Agency and Management Fashion Theory”. There are three main points: the operationalization of...

This paper discusses the role of security analysts in the dissemination of popular management concepts, drawing on neo-institutional and management fashion theory. Focusing on the core competence concept, we investigate whether security analysts swing with the popularity of a management concept...

We analyze the wealth effects of 114 domestic and international acquisitions announced by Swiss corporations between 1990 and 2001. We find no difference between national and cross-border mergers. This may indicate that the international capital markets are highly integrated and is in contrast...

Between 1990 and 2002 a wave of takeovers was observed in the North American and European energy utilities market. We analyze the impact of these takeovers on market power, studying 70 takeovers of US-American and 69 takeovers of German energy utilities by applying event study methodology. Stock...

This article concerns those publications which have received considerable attention in an academic as well as in a practical context. In these rare cases, it seems that it was possible to transfer scientific findings more or less directly into managerial implications. This widely shared view is...