Consider the uncertainty about whether it will rain in Brisbane next weekend. A weather forecaster may be able to assess a precise probability of rain, such as 0.3285 . . . , although even an expert should feel uncomfortable about specifying a probability to more than one or two decimal places. Someone who has little information about the prospects for rain may be able to make only an imprecise...

Although bivariate imprecise copulas have recently attracted substantial attention, the multivariate case seems still to be open. So, it is natural test first on shock model induced copulas, a family which might most useful in various applications. We investigate some of shocks are assumed and develop corresponding set copulas. In Marshall's we get coherent distributions where bounds naturally ...