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Trotz jahrzehntelanger Forschung zur Gültigkeit der Hypothese informationseffizienter Kapitalmärkte (EMH) sind wesentliche damit verbundene Fragestellungen noch immer ungeklärt. Eine ist diejenige nach der Existenz und der Erklärung von zeitvariablen Überrenditen ("Time Varying Excess...
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In the study of economic and financial panel data it is often important to differentiate between time-series and cross …-sectional effects. We present two estimation procedures that can do so and illustrate their application by examining international …-sectionally while other variables vary cross-sectionally but not across time. Using two different estimation procedures we find a …
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