In this paper, we give the necessary and sufficient conditions that characterize the individual excess demand function when it depends smoothly on prices and endowments. A given function is an excess demand function if and only if it satisfies, in addition to Walras’ law and zero homogeneity...

The paper brings a survey of flexible functional forms and summarizes the theoretical properties of several economic functional types (indirect utility, cost, expenditure function and the appropriate input demand systems). The notions of flexibility of the functional fonn (relating to the...

The purpose of this paper is to study how the equilibrium prices vary with respect to the initial endowments in a linear exchange economy with a continuum of agents. We first state the model and give conditions of an increasing strength for existence, uniqueness and continuity of equilibrium...