A new alternative diffusion model for asset price movements is presented. In contrast to the popular approach of Brownian motion it proposes deterministic diffusion for the modelling of stock price movements. These diffusion processes are a new area of physical research and can be created by the...

Capital Asset Pricing Model (CAPM) predicts that expected returns on securities are a positive linear function of their market betas and market beta alone is adequate to describe the cross section of expected returns. However there is a controversy regarding the empirical validity of CAPM. The...

We make two methodological modifications to the method of testing CAPM beta and we show that these significantly affect inferences about the association between CAPM beta and stock returns. While the conventional beta proxy is indeed largely unrelated to realized stock returns (in fact the...

This study estimates liquidity premiums using the recently developed Liu (2006) measure within a multifactor capital asset pricing model (CAPM) including size premiums and a time varying parameter model for the West African emerging market of Nigeria. The evidence suggests that liquidity factors...

We study a rational expectations' competitive equilibrium in a production economy, i.e., a system of prices at which firms' profit maximizing production decisions and individuals' preferred affordable consumption choices equate supply and demand in every market. We derive the equilibrium price...

The purpose of this study is to examine the validity of the CAPM in the capital markets of the Pakistan. The study used daily stock returns of the top 20 companies listed on the KSE (the main equity market in Pakistan) from 16th December 2008 to 26th February 2010. The market 100 index is used...

The present article is focused on the Capital Asset Pricing Model (CAPM) and its implementation into American Stock Market. It attempts to empirically test the validity of the CAPM to estimate individual stock returns based on historical stock data of selected companies. Security Market Line...

We provide an extensive set of alternative models for the estimation of the real cost of equity in a sample of utilities firms in Brazil with monthly data from March 2006 to June 2011. The traditional CAPM is rejected, together with the Fama-French factors, due to a poor fit. Additional factors...

This study examines the role of downside higher order co-moments in asset pricing models when stock returns are not normal. We test the effect of higher order downside co-moments using a data set of daily returns of Société des Bourses Françaises 250 Index stocks during the period 1987-2009....

Due to the dynamic nature of stock market risk and return measurement, financial practitioners and academics are continuously concerned with the development of asset pricing studies. Moreover, validity of the existing theories in the recent Asian financial crises years stimulates additional...