Inventory Effects of Risk Averse Market Makers on Price Formation in a Batch Trading Model
نویسنده
چکیده
Inventory positions of two risk averse market makers are introduced into a Kyle (1985) type batch trading model and the effects are analyzed. An equilibrium is defined with participation constraint and incentive compatibility and it is characterized as γ-coalitional equilibrium. At the equilibrium the two market makers share the risk of clearing orders so that the aggregate pricing schedule becomes linear. The pricing schedule coincides with the regret-free pricing of a fictitious risk averse market maker. The inventories shift the pricing schedule vertically and the coalition parameter changes the slope. The order by the informed trader depends on the inventories. JEL Classification Numbers: D81, D82, G12, G14
منابع مشابه
Trading Volume and Serial Correlation in Stock Returns*
This paper investigates the relationship between aggregate stock market trading volume and the serial correlation of daily stock returns. For both stock indexes and individual large stocks, the first-order daily return autocorrelation tends to decline with volume. The paper explains this phenomenon using a model in which risk-averse "market makers" accommodate buying or selling pressure from "l...
متن کاملاندازه گیری سطح عدم تقارن اطلاعات برای شرکت های منتخب فعال در بورس اوراق بهادار تهران: احتمال مبادله آگاهانه(PIN)
The level of asymmetric information in financial markets is important for its impact on the market formation, price levels and its interaction with investment risk. Also, determining the optimal rules by policy makers and determining the trading strategy by investors is done according to the level of information symmetry in the market. In financial literature, many metrics have been developed t...
متن کاملAsset Pricing Implications of Short-sale Constraints in Imperfectly Competitive Markets
We propose an equilibrium model to study the impact of short-sale constraints on market prices and liquidity in imperfectly competitive markets where market makers have significant market power and are averse to inventory risk. We show that shortsale constraints decrease bid because of the market power and increase ask because of the risk aversion. Our model can therefore help explain why short...
متن کاملOptimal procurement of long-term contracts in the presence of imperfect spot market ¬リニ
B2B spot market has grown rapidly and become an effective trading channel for commodity products. Besides long-term contract procurement from conventional suppliers (forward and option), a buyer can procure or sell commodities at any time in B2B spot market to adjust her inventory level. However, spot prices are generally volatile and the market is imperfect in the sense that spot trading may b...
متن کاملHedging Inventory Risk Through Market Instruments
We address the problem of hedging inventory risk for a short lifecycle or seasonal item when its demand is correlated with the price of a financial asset. We show how to construct optimal hedging transactions that minimize the variance of profit and increase the expected utility for a risk-averse decision-maker. We show that for a wide range of hedging strategies and utility functions, a risk-a...
متن کامل