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In this paper, we propose a multivariate market model with returns assumed to follow a multivariate normal tempered stable distribution. This distribution, defined by a mixture of the multivariate normal distribution and the tempered stable subordinator, is consistent with two stylized facts...
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Internet interview. Comparing core and Internet survey answers of the same people, we analyze mode and context effects … find some large differences between the first Internet survey and the other three surveys which we interpret as a context …
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