This paper offers a synthesis of agricultural household modeling, its evolution and uses; presents a general yet simple agricultural household model, estimated with Mexican village data and programmed using General Algebraic Modeling System (GAMS) software; and uses this model to explore household-level impacts of agricultural policy changes on production and incomes under alternative rural-mar...

Constraint Programming is roughly a new software technology introduced by Jaffar and Lassez in 1987 for description and effective solving of large, particularly combinatorial, problems especially in areas of planning and scheduling. In the following we define three problems for constraint solving from the domain of electrical networks; based on them we define 43 related problems. For the define...

Objetivo: Este trabajo analiza el costo óptimo de expansión, número líneas a incluir y tiempo simulación computacional para dos sistemas transmisión, empleando programación no lineal entera mixta través los solver del software GAMS (General Algebraic Modeling System). El objetivo es determinar las diferencias en costos expansión cuando se emplea modelo transporte, DC, híbrido disyuntivo. Metodo...

The Global Trade Analysis Project (GTAP) is a research program initiated in 1992 to provide the economic research community with a global economic dataset for use in the quantitative analyses of international economic issues. The Project’s objectives include the provision of a documented, publicly available, global, general equilibrium data base, and to conduct seminars on a regular basis to in...

A complete synthetic medium containing 15 amino acids, a minimal synthetic medium (GAMS) containing 4 amino acids, and a supplemented minimal medium (GAMS + calcium pantothenate) have been developed for the cultivation of Hyphomicrobium neptunium ATCC 15444. Depending on the complexity of the synthetic media, generation times were approximately 2 to 3 times longer, and maximum cell densities we...

The assignment problem is a that takes many forms in optimization and graph theory, by changing some of the constraints or interpreting them differently adding other constraints, it can be converted to routing, distribution, scheduling problems. Showing such correlations one aims this paper. For derived problems having exponential time complexity, question arises their solvability for larger in...

away from the underlying programming languagein favour of using graphical means of programming, suchas wizards and statecharts. Platforms. Closed frameworks such as DESIRE, strongly based on a platform, provide more complete solutions thanothers such as Jadex or TuCSoN. They usually offer anagent architecture and a system model, very useful fornovel developers, together with...

This document gives a short introduction into Spatial Equilibrium modeling with GAMS. 1. Intertemporal-Spatial Price Equilibrium Solving spatial equilibrium models by mathematical programming is pioneered by [9],[12], [11], and [13]. One of the most basic forms is the transportation problem, also known as the “Koopmans-Hitchcock” model. An example is found in the GAMS model library in trnsport....

In this article, the use of software design patterns for modeling the stages of a compiler is presented. The compiler is generated for expressing disjunctions and logic propositions into optimization mathematical programs. It works linked to a mathematical modeling system, because the introduction of logic into those programs completes them instead of replacing them. It works as a post-compilat...