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A Note on Portfolio Selections under Various Risk Measures

This work gives a brief overview of the portfolio selection problem following the mean-risk approach first proposed by Markowitz (1952). We consider various risk measures, i.e. variance, value-at-risk and expected-shortfall and we study the efficient frontiers obtained by solving the portfolio selection problem under these measures. We show that under the assumption that returns are...

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English / 01/08/2002

An Application of Evolutionary Finance to Firms Listed in the Swiss Market Index

This paper presents an application of evolutionary portfolio theory to stocks listed in the Swiss Market Index (SMI). We study numerically the long-run outcome of the competition of rebalancing rules for market shares in a stock market with actual dividends taken from firms listed in the SMI. Returns are endogenous because prices are determined by supply and demand stemming from the...

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English / 01/08/2002

Acquisitions versus Entry: The Evolution of Concentration

We consider market dynamics in a reduced form model. In the simplest version, there are two investors and several small noninvesting firms. In each period, one investor can acquire a small firm, the other investor decides about market entry. After that all firms play an oligopoly game. We derive conditions under which increasing market concentration arises with myopic firms, we show...

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English / 01/08/2002

Do High Stakes and Competition Undermine Fairness? Evidence from Russia

This paper reports the results of a series of competitive labour market experiments in which subjects have the possibility to reciprocate favours. In the high stake condition subjects earned between two and three times their monthly income during the experiment. In the normal stake condition the stake level was reduced by a factor of ten. We observe that both in the high and the...

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English / 01/07/2002

Resuscitating the Cobweb Cycle

"This note shows that permanent fluctuations in the Cobweb model — though inconsistent with a rational expectations equilibrium — can be justified as being rational when reinterpreting the model in the theory of rational beliefs."

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English / 01/07/2002

How Special Interests Shape Policy - A Survey

This paper surveys recent approaches towards lobbying if interest groups influence the decision of an incumbent government. It describes the two main channels of influence which mainly exist in parallel, namely contribution payments and the transmission of information through lobbying. Recent extensions to the two basic lobbying models are discussed in great detail. Thereafter...

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English / 01/07/2002

Subjektive Daten in der empirischen Wirtschaftsforschung: Probleme und Perspektiven

Preise, Einkommen, und Nachfrage – die zentralen zu erklaerenden Variablen in den Wirtschaftswissenschaften sind objektiv messbar. Daneben gibt es jedoch zwei nicht minder zentrale Groessen, Erwartungen und Praeferenzen, die sich einer direkten objektiven Messung entziehen. Es sind subjektive Variablen, also solche, die von persoenlichen Meinungen und Erfahrungen bestimmt sind....

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English / 01/07/2002

‘Thou art a scholar, speak to it' - On Spaces of Speech : A Script

This article argues, based on the work of Bakhtin and de Certeau, that there is no aesthetics without politics and that all academic discourse and practices are enacted through aesthetic forms with inherently political and ethical effects. The article is written in a script-form with indications on how to perform it, acting out or ‘performing' in a direct way rather than adding...

English / 01/07/2002

"Perspectivas México" - Praktische Aussenwirtschaftsförderung für Schweizer KMU

Präsentation vor der Generalversammlung 2002 der Lateinamerikanischen Handelskammer in der Schweiz; Zürich: Haus "Zum Rüden", 19. Juni 2002.#### Download der Präsentation (PDF-Datei, 245 KB)

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English / 19/06/2002

Unternehmensintegrität im Blickpunkt (7). Zertifizierung - zwischen Geist und Buchstaben von Normenkatalogen

Die Zertifizierung von Handlungsweisen, die nicht nur indirekt und in ferner Zukunft gesellschaftsdienlich sind, gewinnt Bedeutung.

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Deutsch / 06/06/2002

Museums between Private and Public - The Case of the Beyeler Museum

"In Europe, ever more private museums are now entering the field. This paper investigates the behavior of one of these private museums, using an institutional approach of cultural economics. The Beyeler museum in Basle, Switzerland, is a privately founded art museum with an extraordinary collection of art works. Though less than five years old, it is acknowledged to be the most...

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English / 01/06/2002

"Publishing as Prostitution? Choosing Between One‘s Own Ideas and Academic Failure"

Survival in academia depends on publications in refereed journals. Authors only get their papers accepted if they intellectually prostitute themselves by slavishly following the demands made by anonymous referees without property rights on the journals they advise. Intellectual prostitution is neither beneficial to suppliers nor consumers. But it is avoidable. The editor (with...

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English / 01/06/2002

Lobbying Activities of Multinational Firms

This paper investigates if multinationals in.uence the political process through lobbying more effectively than national firms. First, I introduce a model which contrasts a multinational’s incentives for lobbying with those of a national firm. Then the effect of lobbying on the political decision is analyzed. I conclude that multinationals have smaller incentives to lobby because...

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English / 01/06/2002

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