Order-Driven Markets are Almost Competitive

S-Tier
Journal: Review of Economic Studies
Year: 2016
Volume: 83
Issue: 1
Pages: 338-364

Score contribution per author:

8.043 = (α=2.01 / 1 authors) × 4.0x S-tier

α: calibrated so average coauthorship-adjusted count equals average raw count

Abstract

This article studies a market game under uncertainty in which agents may submit multiple limit and market orders. When agents know their preferences at all states, the competitive equilibrium can be supported as a Nash equilibrium of the market game, that is, agents behave as if they were price takers. Therefore, if the associated competitive economy has a fully revealing rational expectations equilibrium, then so does the market game. This resolves the puzzle that agents behave as if prices were given, even though prices aggregate private information, at least for this "private values" case. Necessary conditions for Nash equilibrium show that the resulting allocation cannot deviate too far from a competitive equilibrium. When agents do not know their preferences at some states, though, a characterization result shows that the Nash equilibria of the market game tend to be far from competitive.

Technical Details

RePEc Handle
repec:oup:restud:v:83:y:2016:i:1:p:338-364.
Journal Field
General
Author Count
1
Added to Database
2026-01-29