Abstract: A particular market equilibrium problem,in which the supply side is described by a linear programming problem and the market dernand function is generated by a general econometric models,is discussed in this paper.After converting this market equilibrium into a linear complemantarity problem,the existence of equilibrium points is studied.A kind of econometric problem which is described by a quadratic programming is discussed also.An analogous result is given by the theory of quadratic programming.

Key words: Market equilibrium, Linear complemantarity problem, Quadratic programming