The Effect of Exchange Rates on Statistical Decisions

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چکیده

Statistical decision theory, whether based on Bayesian principles or other concepts such as minimax or admissibility, relies on the idea of minimizing expected loss or maximizing expected utility. Loss and utility functions are generally treated as unitless numerical measures of how costly or valuable are the various consequences of potential decisions. In this paper, we address directly the issue of the units in which loss and utility are settled and the implications that those units have on the rankings of potential decisions. The simplest example is to imagine that the loss will be paid in units of some currency. If there are multiple currencies available for paying the loss, one must take explicit account of which currency is used as well as the exchange rates between the various available currencies.

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تاریخ انتشار 2012