Munich Personal RePEc Archive

Can a Stock Index Be Less Efficient Than Underlying Shares? An Analysis Using Malta Stock Exchange Data

Camilleri, Silvio John (2005): Can a Stock Index Be Less Efficient Than Underlying Shares? An Analysis Using Malta Stock Exchange Data. Published in: The FEMA Research Bulletin , Vol. 1, No. 1 (1 January 2005): pp. 29-41.

[img]
Preview
PDF
MPRA_paper_84574.pdf

Download (804kB) | Preview

Abstract

Researchers often assume that stock market indices are the best possible yardstick in terms of market efficiency. The paper investigates this concept using data from the Malta Stock Exchange (MSE). The fact that a significant number of MSE shares do not trade everyday, may imply that the most liquid shares on this exchange are more efficient than the market index, whose value is dependent on shares of varying liquidity levels – including the less liquid ones. The paper applies various tests to compare the pricing efficiency of the MSE Index to that of the most liquid share quoted on the exchange. It is found that the MSE Index is still more efficient than the latter share.

UB_LMU-Logo
MPRA is a RePEc service hosted by
the Munich University Library in Germany.