This paper studies how the trade size and the historical sequence of trades affect bid-ask spreads, investors’ trading strategies, and the market maker’s learning process in a multi-period economy. First, we show that there is a nonzero cut-off size below which informed traders never buy or...

[ES] Una de las principales preocupaciones en el área de la microestructura del mercado ha sido la estimación de los componentes no observables de la horquilla de precios a partir de las series de datos que proporcionan los mercados financieros, despertando quizá un mayor interés el de...

This paper analyzes the choice between limit and market orders in an imperfectly competitive noisy rational expectations economy. There is a unique insider, who takes into account the effect their trading has on prices. If the insider behaves as a price taker, she will choose market orders if...

One of the main interests of market microstructure is the estimation of the bid–ask spread components from financial data, specially the adverse selection component given the implications of its own existence. As aresult, several empirical models based on price time–series statistical...

We analyse a Kyle-type continuous-time market model in which liquidity trading is correlated with a noisy public signal that is released continuously. We show that, in contrast to the previous literature, Kyle's λ, the price sensitivity to the order flow, can even be non-monotonic, depending on...

The Kyle (1985) and Back (1992) model of continuous-time asset pricing with asymmetric information is studied. A larger class of price processes is considered, namely price processes that allow the price to depend in a certain way on the path of the market order. A no expected (or inconspicuous...

This paper examines the formation of option transaction prices in an imperfect market where risk-averse dealers face liquidity and informed traders. Because of market imperfections, trading is costly and arbitrage pricing does not apply. Rather, the transaction prices are related to the dealers'...

In recent years, a number of electronic limit order have reintroduced market makers for some securities (Designated Market Makers). This trend has mainly been initiated by financial intermediaries and listed firms themselves, without any regulatory pressure. In this paper we ask why firms are...

The purpose of this paper is to look at the duration of the four-month period before the window dressing of Power Quotient International Co., LTD. (PQI) annual report between 2004 and 2005 was disclosed. The vultures sold 6,373,000 shares of PQI's stock based on the illegally obtained insider...