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The Role Of Stories In Understanding The Cultural Context Surrounding Information Systems Practices, Line Dubé
The Role Of Stories In Understanding The Cultural Context Surrounding Information Systems Practices, Line Dubé
FIU Electronic Theses and Dissertations
The culture of an organization constitutes the environment into which information systems (IS) practices take place. Despite the importance of culture in the organizational theory and management literature, this topic has received little attention in the IS area. The culture of an organization can be looked at from different angles. In addition to the usual view of culture, the integration view, two other perspectives have been identified in the literature: the differentiation and fragmentation perspectives. While the integration perspective focuses on the "assembling" role organizational culture is normally said to play, the differentiation perspective highlights important differences among groups of …
International Stock Portfolio Selection And Performance Measure Recognizing Higher Moments Of Return Distributions, Pornchai Chunhachinda
International Stock Portfolio Selection And Performance Measure Recognizing Higher Moments Of Return Distributions, Pornchai Chunhachinda
FIU Electronic Theses and Dissertations
Since the seminal works of Markowitz (1952), Sharpe (1964), and Lintner (1965), numerous studies on portfolio selection and performance measure have been based upon the mean-variance framework. However, several researchers [e.g., Arditti (1967, and 1971), Samuelson (1970), and Rubinstein (1973)] argue that the higher moments cannot be neglected unless there is reason to believe that: (i) the asset returns are normally distributed and the investor's utility function is quadratic, or (ii) the empirical evidence demonstrates that higher moments are irrelevant to the investor's decision. Based on the same argument, this dissertation investigates the impact of higher moments of …