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– Stochastic Programming (SP) with EMP - the stochastic programming (SP) extension of GAMS Extended
Mathematical Programming (EMP).
– Mathematical Programming System for General Equilibrium analysis (MPSGE) - A mathematical programming
system for general equilibrium analysis which operates as a subsystem within GAMS.
* MPSGE Models in GAMS
* Demand Theory and General Equilibrium: An Intermediate Level Introduction to MPSGE
* Constant Elasticity of Substitution Functions: Some Hints and Useful Formulae
* A Library of Small Examples for Self-Study
* Comparing the Performance of Flexible Functional Forms
* General Equilibrium with Public Goods
* Kevin O'Rourke: CGE and Economic History
* Linking Implan Social Accounts to MPSGE
* A partial list of publications based on MPSGE
* The MPSGE guide is also available as PDF
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If you submit a file containing the statements above as input to the GAMS program, the transportation model will be
formulated and solved. Details vary on how to invoke GAMS on different of computers, but the simplest ('no frills') way to
call GAMS is to enter the word GAMS followed by the input file's name. You will see a number of terse lines describing the
progress GAMS is making, including the name of the file onto which the output is being written. When GAMS has finished,
examine this file, and if all has gone well the optimal shipments will be displayed at the bottom as follows.
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Objective Function
This is a reminder that GAMS has no explicit entity called the objective function. To specify the function to be optimized,
you must create a variable, which is free (unconstrained in sign) and scalar-valued (has no domain) and which appears in an
equation definition that equates it to the objective function.
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Preface
This documentation guides GAMS User through several topics in GAMS system. Some introductions to software systems
are like reference manuals: they describe each command in detail. Others take you step by step through a small number of
examples. This guide uses elements of both approaches.
• Introduction and Tutorial - This is a self-contained tutorial that guides you through a single example, a small
transportation model, in some detail: you can quickly investigate the flavor of GAMS by reading it.
– Introduction - an introductory to GAMS User's Guide.
– Tutorial - A GAMS Tutorial by Richard E. Rosenthal.
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