 Any representation of the reasoning of the parties will have two elements that need to be specified: 1) doxastic and 2) evaluative. These elements, when combined, create a complete model that will specify how and why representatives in the contractual model choose or agree to some set of social rules. The first (doxastic) is the specification of everything the representatives in the original position know or at least believe. Choice in the contractual model in the broadest sense, is an attempt by the parties to choose a set of rules that they expect will be better than in some baseline condition, such as “generalized egoism” (Rawls, 1999: 127) a “state of nature” (Hobbes 1651) or the rules that they currently have (Binmore, 2005; Buchanan 2000 [1975]). To do this, they need representations of the baseline and of state of the world under candidate set of rules). Without either of these doxastic representations, the choice problem would be indeterminate. Rawls famously imposes severe doxastic constraints on his parties to the social contract by imposing a thick veil of ignorance that eliminates information about the specific details of each individual and the world they live in. James Buchanan imposes a similar, but less restrictive “veil of uncertainty” on his representative choosers (Buchanan and Tullock 1965 [1962]; Buchanan 1975; see also Rawls, 1958).