Exclusive Data, Price Manipulation and Market Leadership

Price leadership in a vertically differentiated market

Article history: Accepted 19 December 2013 Available online xxxx JEL classification: L1 D4 C7

Market Price Manipulation in a Sequential Trade Model∗

The dynamic version of the Glosten and Milgrom (1985) model of asset pricing with asymmetric information is studied. It is shown that there is a unique equilibrium when the next-period value function of the informed trader, who knows the terminal value of the asset, is strictly convex and strictly monotone in terms of the market maker’s prior belief. A characterization of the bid and ask prices...

Unchecked intermediaries: Price manipulation in an emerging stock market

How costly is the poor governance of market intermediaries? Using unique trade level data from the stock market in Pakistan, we find that when brokers trade on their own behalf, they earn annual rates of return that are 50-90 percentage points higher than those earned by outside investors. Neither market timing nor liquidity provision by brokers can explain this profitability differential. Inst...

Market Structure and Price Adjustment in the Iranian Tea Market

Endogenous price leadership

We consider a linear price setting duopoly game with differentiated products and determine endogenously which of the players will lead and which one will follow. While the follower role is most attractive for each firm, we show that waiting is more risky for the low cost firm so that, consequently, risk dominance considerations, as in Harsanyi and Selten (A General Theory of Equilibrium Selecti...