This paper examines demand systems where the demand for a good depends only on its own price, consumer income, and a single aggregator synthesizing information on all other prices. This generalizes directly-separable preferences where the Lagrange multiplier provides such an aggregator. As...

Market segmentation characterized by price heterogeneity appears as a failure of classical view of market equilibrium. We suppose that an existence of specific asset pricing determines the wealth level of lenders. In microfinance, we look at the linkages between the welfare of lenders and market...

This paper examines the computation of welfare measures for use with labour supply models. The standard method of computing compensating and equivalent variations does not allow sufficiently for the nonlinearity of the budget constraint in such models. An alternative method is suggested and...