Some researchers argue that co-operative behaviour is possible in the commons because individuals, instead of just being concerned with their own material payoffs, are also concerned with the material payoffs of others. In the economic literature these types of preferences are sometimes called "interdependent". However, while there is much informal discussion on the importance of individual pre...

We study the impact on asset prices of illiquidity associated with search and bargaining in an economy in which agents can trade only when they find each other. Marketmakers’ prices are higher and bidask spreads are lower if investors can find each other more easily. Prices become Walrasian as investors’ or marketmakers’ search intensities get large. Endogenizing search intensities yields natur...

N. Matthews, N. Bester, and L.M. J. Schwalbach Department of Animal-Wildlife-and Grassland Sciences, University of the Free State, P.O.Box 339, Bloemfontein, 9300 _______________________________________________________________________________________ Abstract This aim of this study was to compare the quality of ram semen samples collected by means of artificial vagina and by electro-ejaculation...

Die Studie untersuchte die Auswirkungen erziehungsbezogener elterlicher Depressivität auf Selbstwirksamkeitserwartung bei 189 Kindern im Alter zwischen 9–11 Jahren (MAlter=9.69, SDAlter=0.48). Dabei interessierte promotive und protektive Rolle der Freundschaftsqualität zum besten Freund beziehungsweise zur Freundin. erziehungsbezogene elterliche wurde den Eltern über das Eltern-Belastungs-Inven...

Am 17. und 18. November 2005 fand im Novotel München-Neuperlach das 23. Treffen der Fachgruppe Test, Analyse und Verifikation von Software (TAV) statt. Den über 40 Teilnehmenden aus Industrie, öffentlicher Verwaltung und Hochschulen wird das Treffen aufgrund seines stimulierenden Workshop-Charakters und nicht zuletzt auch aufgrund des überaus freundlichen Ambientes und des hervorragend umsorgte...

The Revelation Principle is the cornerstone of the theory of mechanism design. It shows that seemingly complex problems can be viewed as programming problems with constraints that give the agent the right incentives to truthfully reveal his private information. Needless to say, the theory is widely applicable. Nevertheless, one of the main assumptions underlying the Revelation Principle is not ...