A new information-based approach for estimating systems of many equations with nonnegativity constraints is presented. This approach, called generalized maximum entropy (GME), is more practical and efficient than traditional maximum likelihood methods. The GME method is used to estimate an almost ideal demand system for five types of meat using cross-sectional data from Mexico, where most house...

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We invent Implicit Marshallian Demands, a new type of demand function that combines desirable features of Hicksian and Marshallian demand functions. We propose and estimate the Exact Af ne Stone Index (EASI) Implicit Marshallian Demand system. Like the Almost Ideal Demand (AID) system, EASI budget shares are linear in parameters given real expenditures. However, unlike the AID, EASI demands can...

This paper develops an analysis of markets for differentiated products. It relies on the concept of latent separability for consumer preferences. As proposed by Blundell and Robin, latent separability assumes that purchased products are allocated in the production of latent intermediate utility-yielding goods. Product differentiation can arise when each product makes a different contribution to...

the aim of this paper is to generalize the‎‎notion of pseudo-almost valuation domains to arbitrary‎ ‎commutative rings‎. ‎it is shown that the classes of chained rings‎ ‎and pseudo-valuation rings are properly contained in the class of‎ ‎pseudo-almost valuation rings; also the class of pseudo-almost‎ ‎valuation rings is properly contained in the class of quasi-local‎ ‎rings with linearly ordere...

Demonstration on restrictions and accuracy of an estimator is pivotal since the incomplete will make inaccurate that they cannot be used for need decision making. In this study, demand system’s three primary requirements-adding up, homogeneity, symmetry ‒ are examined. This current research was intended to demonstrate Quadratic Almost Ideal Demand System (QUAIDS) model estimator. The source dat...

The unitary model has been rejected many times. In this paper, we start from one such rejection in the context of rural Mexico and propose a test of one of the main alternatives to the unitary model, the so called collective model, a model that assumes that intrahousehold allocations, however, determined, are e¢ cient. The test we propose requires the consideration of a demand system with at le...