This paper proposes a solution method to solve linear difference models with lagged expectations. Variables with lagged expectations expand the model's state space greatly when N is large; and getting the system into a canonical form solvable by the traditional methods involves substantial manual...

We focus on the revealed preference conditions that characterize the collection of finite data sets that are consistent with the maximization of a weakly separable utility function. From a theoretical perspective, we show that verifying these revealed preference conditions is a difficult...

This paper introduces the concept of ordient for binary relations (prefer-ences), a relative of the concept of gradient for functions (utilities). The mainmotivation for this study is to replace the binary relation at the center stageof economic analysis, rather than its representation (whenever...