Computational General Equilibrium > Demonstration Models


A very minimal model that illustrates basic concepts in CGE modeling and is easy to implement and solve. A variant using a Cobb Douglas production function is also available.

Ox Version


Gempack Version Proto in Tablo form 
proto_gp_a.cmf Tax increase from 0.2 to 0.3 
proto_gp_b.cmf Tax increase from 0.2 to 0.22 
proto_gp_c.cmf Tax increase from 0.20 to 0.30 using Gragg's method to reduce linearization errors 

GAMS Version

proto.gms Proto in GAMS. 
proto.lst Output from proto.gms 
proto_both.gms Base case and policy experiments in a single GAMS file. 
proto_both.lst Output from proto_both.gms 

Maple Version

proto.m Base case model with tax equal to 0.2 
proto.out Output file for proto.m 
proto_policy.m Policy experiment: tax raised to 0.3 
proto_policy.out Output for proto_policy.m 
proto_policy_2.m Policy experiment: tax raised to 0.22 
proto_sens.m Sensitivity of base case and 0.3 tax to parameters 
proto_sens.out Output from proto_sens.m 
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Peter J Wilcoxen, The Maxwell School, Syracuse University
Revised 02/24/2005