On the aubin-like characterization of competitive equilibria in infinite dimensional economies

For an exchange economy with finitely many agents and a commodity space which is infinite dimensional, it is proved that competitive equilibria are the same as allocations belonging to the fuzzy core of the economy. The latter is further characterized as a subset of the ordinary core of a suitably associated continuum economy.

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Riassunto Per un'economia di puro scambio con un numero finito di agenti e uno spazio dei beni di dimensione non necessariamente finita, si prova che gli equilibri Walrasiani possono essere caratterizzati come allocazioni che appartengono al nucleo fuzzy dell'economia. Inoltre, queste ultime allocazioni sono in corrispondenza biunivoca con allocazioni di tipo semplice che si trovano nel nucleo ordinario di un'opportuna economia che ha [0,1] come spazio rappresentativo dello spazio degli agenti.

     

Active investment manager portfolios and preferences for stock characteristics

The present study investigates the stock characteristic preferences of institutional Australian equity managers. In aggregate we find that active managers exhibit preferences for stocks exhibiting high‐price variance, large market capitalization, low transaction costs, value‐oriented characteristics, greater levels of analyst coverage and lower variability in analyst earnings forecasts. We observe stronger preferences for higher volatility, value stocks and wider analyst coverage among smaller stocks. We also find that smaller investment managers prefer securities with higher market capitalization and analyst coverage (including low variation in the forecasts of these analysts). We also document that industry effects play an important role in portfolio construction.     

Hautpflege bei Inkontinenz

N?sse auf der Haut - Sowohl von den Betroffenen als auch von medizinischen Fachkr?ften wird die Inkontinenz oft als normales Ph?nomen des Alterungsprozesses betrachtet und entsprechend hingenommen. Die Mehrzahl der Betroffenen spricht nicht oder nur ungern über die Problematik, da das Thema ausgesprochen schambehaftet und tabuisiert ist.     

From core to periphery and back: A study on the deliberate shaping of knowledge flows in interfirm dyads and networks

We study 892 Italian motorcycle industry projects carried out via 184 different buyer–supplier and supplier‐supplier relationships to provide evidence on the knowledge dynamics occurring in dyads and networks and to understand the underexplored but important (perhaps even dominant) leading role that some firms play in the evolution of networks and interfirm learning processes. We develop a multiphase model which, from a multilevel perspective addressing different relational subsets, suggests how firms can best organize to generate and exchange knowledge efficiently. We argue that extant theoretical perspectives can profitably draw on our findings to strengthen their dynamic components and help them explain the widely diffused ‘exploring through partner’ strategies more effectively. Copyright © 2013 John Wiley & Sons, Ltd.     

Do Vertical Linkages Limit Protectionism? Switzerland in the Multifibre Arrangement

The multifibre arrangement (MFA) heavily restricted the world trade in textiles and clothing (T&C) from 1974 to 1994. Switzerland joined the MFA as one of 44 signatory economies in 1974, but never applied its discriminatory instruments. To explain this peculiar behaviour, we apply international trade theory as well as files gathered from the Swiss Federal Archives. Our analysis suggests that Switzerland used the MFA, first, as an instrument to seek better market access, and second, as an option to protect its T&C industry if required. Switzerland refrained, however, from exercising the option mainly because of the existence of an important vertically related export industry, that is the Swiss textile machinery industry.     

Guilt Appeals and Prosocial Behavior: An Experimental Analysis of the Effects of Anticipatory Versus Reactive Guilt Appeals on the Effectiveness of Blood Donor Appeals

This study investigates the effectiveness of guilt-arousing communication in promoting prosocial behavior. By analyzing the distinct effects of anticipatory versus reactive guilt appeals, we contribute to the discussion of guilt appeals as drivers of prosocial behavior, especially blood donation. Research on persuasive communication provides the theoretical basis of our study and we validate our hypotheses by means of two 2?×?2 factorial between-subjects designs. We find that anticipatory rather than reactive guilt appeals are more effective in generating prosocial action tendencies. Compared to noninformational reference group influences, messages endorsed by members of informational reference groups yielded more favorable attitudinal responses. Besides their significant main effect, two-sided messages reinforce the favorable impact of anticipatory guilt appeals. The study concludes with practical implications for nonprofit organizations and public blood donor services as well as avenues for future research.