The CES is generalized by extension of the work of Hanoch (1975) resulting in implicit, direct and indirect relationships between utility and consumption. Expressions for substitution and income elasticities are developed and observed to be variable, rather than constant as in the CES case.

A recently developed demand system, nicknamed AIDADS (An Implicit, Directly Additive Demand System), offers an approach to capturing consumer preferences across a wide range of expenditure levels. AIDADS generalizes the LES by assuming marginal budget shares vary with utility and hence with...

The universe of existing CGE models can be divided into 3 broad categories. The first class of models (of which the standard GTAP Model is a classic example) emphasizes the static effects of policy related to general equilibrium resource reallocation. The second involves scale economics and...

February 1999 This paper discusses the implementation of embodied international technology spillovers in the GTAP Model. We specify a transmission mechanism for technical knowledge that assumes that knowledge is embodied in traded commodities. The usability of knowledge in the receiving country...