The dominant practice in economics is to choose the mathematical specification of model relations on the basis of convenience, without much theoretical support. This paper discusses how quantitative model specifications can, in some cases, be given a more formal scientific underpinning in the...

This paper proposes a particular behavioral assumption to characterize the stochastic structure of intertemporal discrete choice models in the absence of state dependence. This assumption extends Luce's axiom; Independence from Irrelevant Alternatives, to the intertemporal context. Under certain...