A Simple Implicit Measure of the Effective Bid-Ask Spread in an Efficient Market

Evaluation of the association between company performance and Iran’s stock market liquidity

This research studies the companies’ effectiveness and performance relationship with stock market liquidity in Tehran Stock Exchange during 2010-2015. Simultaneously, in the study, the three indicators: return on assets, return on investment and Tobin's Q ratio were applied as a measure of the performance and bid-ask spread as a measure of liquidity, bid-ask spread to the stock market. This res...

The Use Of Financial Ratios as Measures Of Risk In The Determination Of The Bid- Ask Spread In Tehran Stock Exchange

Resiliency On Order-Driven Markets

Market liquidity has an important role in trading on stock markets, since on illiquid markets the implicit cost of trading can cause notable losses for the investors. Therefore market participants should always measure the liquidity of the markets, which they can carry out in two ways, in a static and in a dynamic form. The most commonly used liquidity measures – bid-ask spread and the turnover...

Impact and Volatility in Double Auction Markets

We argue that on electronic markets, limit and market orders should have equal effective costs on average. This symmetry implies a linear relation between the bid-ask spread and the average impact of market orders. Our empirical observations on different markets are consistent with this hypothesis. We then use this relation to justify a simple, and hitherto unnoticed, proportionality relation b...

Characterizing bid–ask prices in the Brazilian equity market

This paper presents evidence of long-range dependence in bid–ask prices for individual equity prices in the Brazilian stock market. Moreover, using the Hurst exponent calculated by the Local Whittle method as a measure of long-range dependence, we find evidence supporting that bid–ask prices shows a stronger long-range dependence than the one usually found in closing and opening prices. Finally...