CFDP 902

Solving Systems of Simultaneous Equations in Economics


Publication Date: October 1989

Pages: 31


We show that there is a broad range of systems of simultaneous equations that arise in economics as descriptions of equilibrium that can be solved in elementary fashion via degree theory. Some of these systems are not susceptible to analysis by standard Brouwer fixed point methods. Two of our applications are to general equilibrium with incomplete markets, and to nonconvex production with noncompetitive pricing rules.

JEL Classification Codes: 213, 022, 021

See CFP: 749