A correction to Potters and van Winden (1992)

This note amends the model of informational lobbying presented in Potters and van Winden (Public Choice 74:269–292, 1992). In the original article, the authors find that only separating and pooling equilibria exist when the cost of lobbying is intermediate and the policymaker’s prior favors the interest group’s preferred policy. However, we prove that a semi-separating equilibrium also exists under these conditions. Implications for lobbying behavior are discussed.     

The area of discovery of Apanteles glomeratus (Hymenoptera: Braconidae), Pteromalus puparum (Pteromalidae) and Brachymeria regina (Chalcididae)

The areas of discovery ofApanteles glomeratus, Pteromalus puparum andBrachymeria regina were calculated using two different models. Increasing host or parasite density generally resulted in an initial increase followed by a decrease in area of discovery.

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Zusammenfassung Ziel der Versuche war, die Sucheffizienz von drei Parasiten des kleinen Kohlweiβlings,Pieris rapae, zu bestimmen: des LarvenparasitenApanteles glomeratus und der PuppenparasitenPteromalus puparum undBrachymeria regina. Der Aktionsraum (a) wurde berechnet nach den Formeln von Nicholson & Bailey (1935) und von Hassell & Varley (1969). Die Interferenzkonstanten (m) wurden erhalten und untersucht, um festzustellen, ob sie real oder “statistische Artefakte’ sind. Alle Parasiten zeigten allgemein ein anf?ngliches Anwachsen, gefolgt von einer Abnahme von a bei zunehmender Wirts-und Parasitendichte. Alle Werte von m scheinen zuf?llig zu sein. Die Werte von a beiP. puparum waren die am wenigsten durch m verminderten. Dies deutet darauf hin, dassP. puparum ein wirksameres Mittel zur biologischen Bek?mpfung sein wird unter Bedingungen hoher Parasitendichte, wie sie bei Anwendung der überschwemmungstechnik auftreten mag.

     

Muslim Diaspora in Western Europe: The Islamic Headscarf ( Hijab ), the Media and Muslims' Integration in France

The hijab , an Arabic word that is related to Islamic proper dressing, has become a buzzword in contemporary French popular discourse. In the Islamic tradition, both men and women are required to dress modestly. Women traditionally cover their hair, a practice called hijab. This hijab (Islamic scarf) seems to have created a controversy in France in recent years, and the French media have exploited the matter even further. Even scholars seem to have abstracted the cultural/ religious symbol from its proper context. The controversy of the hijab in France therefore has actually revealed more about the character of the French society/ mentality than about the Muslim community. I intend to use the controversy over the hijab to question and challenge the conventional reading of the integration of the Muslim Maghrebin people into secular French society. I will explore the concept of integration and the way this integration functioned as a source of privilege as well as a source of discrimination. I will use the debate over the hijab to further investigate the interplay of religion, immigration and citizenship in France.