The Stability Of Virtual Equilibrium

Abstract

The impact of information technology (IT) on the stability of market equilibrium is explained from a simple microeconomic standpoint. Attributes of a dynamically stable “virtual” market equilibrium are described assuming consumer rationality, an elastic supply curve, and minimum static market demand. Three conditions are necessary for long-run price stability of such a “virtual” equilibrium: (1) firm-specific strategic effects have to be completely offset by aggregate demand growth effects, (2) market equilibrium must arise under the constraint of demand sustainability, and (3) consumer indirect utility gains from information availability must exceed their respective disutility from locational search costs. Those conditions stem from more elastic supply together with less elastic demand compared to when IT is not utilized.