Purpose – The purpose of this paper is to examine the nature and extent of instability of capital asset pricing model (CAPM) beta in a small emerging capital market. Design/methodology/approach – Inter‐period as well as intra beta instability are examined. Inter‐period instability is...

Purpose – The purpose of this paper is to examine the nature and extent of instability of capital asset pricing model (CAPM) beta in a small emerging capital market. Design/methodology/approach – Inter-period as well as intra beta instability are examined. Inter-period instability is...