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Die vorliegende Arbeit behandelt Effizienzberechnung zu den Arbeitsämter im Bundesgebiet West und zeigt hier beträchtliche Unterschiede auf. Effizienz wurde auf zwei Niveaus berechnet: Aktivität und Effektivität.
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This paper provides the first empirical test of the diversification of opinions theory and the groupshift theory using real business data. Our data set covers management teams and single managersof US equity mutual funds. Our results reject the group shift theory and support thediversification...
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Recent empirical research suggests that measures of investor sentimenthave predictive power for future stock returns over the intermediate and longterm. Given the widespread publication of sentiment indicators, smart investorsshould trade on the information conveyed by such indicators and...
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