Covariance application in bid-ask spread estimation for shares listed on the Warsaw Stock Exchange

the relationship between return and the bid-ask spread in tehran stock exchange

this paper studies the relationship between return and the bid-ask spread in tehran stock exchange. the research has been done according to amihud and mendelson’s model (1986). it should be mentioned that portfolio beta and size are added as explanatory variables into the model. the study period is from day 1382 to tir 1389. based on the pooling of cross section and time series data used to est...

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

Mining Associations on the Warsaw Stock Exchange

Identi cation of patterns in stock markets has been an important subject for many years. In the past, numerous techniques, both technical and econometric, were used to predict changes in stock markets, but dependences among all the companies listed on a stock market were considered in a limited extent. Numerous studies con rm that larger stocks items appear to in uence smaller ones and that, on...

Comparative study on Warsaw Stock Exchange and Vienna Stock Exchange

A very important research topic is describing the way in which different asset price movements are correlated. Modern portfolio theory methods are based on observed correlations between returns at daily or larger time scales. One expects that coarse scale correlations originate from intraday movements that are strongly correlated. This implies the important question of how to obtain better esti...

Expected Return and the Bid-Ask Spread

This paper empirically examines the relation between the expected stock return and the bid-ask spread. Using the same portfolio formation method as in Amihud and Mendelson (1986) but different test methodologies, we do not find any clear reliable relation between the CAPM risk-adjusted return and the relative bid-ask spread. Our empirical results are more consistent with the conclusions of Cons...