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Malaysian Finance Sector Weak-Form Efficiency: Heterogeneity, Structural Breaks, and Cross-Sectional Dependence


  • Ching Kok, Sook

    () (Universiti Malaysia Sabah)

  • Munir, Qaiser

    () (Universiti Malaysia Sabah)


This study examines the weak-form efficient market hypothesis (EMH) for the Finance Sector in Malaysian Stock Exchange, by exploring and scrutinizing the firm-level efficiency over for the period from 1st January 1997 to 31st December 2014. For this purpose, we apply panel nonlinear unit root test that accounts for heterogeneity, and panel stationarity test to allow for the presence of structural breaks and crosssectional dependence (CSD). The main findings of this study suggest the following: first, there is a strong CSD among the price series of finance stocks; second, unlike the traditional panel unit root tests that provide mixed-results, the panel stationarity test which incorporates structural breaks and CSD suggests that these series are characterized as random walk processes implying the Finance Sector is weak-form efficient. The finding of weak-form efficiency has salient implications in terms of capital allocation, stock price predictability, forecasting technique, and the impact of shocks to stock prices.

Suggested Citation

  • Ching Kok, Sook & Munir, Qaiser, 2015. "Malaysian Finance Sector Weak-Form Efficiency: Heterogeneity, Structural Breaks, and Cross-Sectional Dependence," Journal of Economics, Finance and Administrative Science, Universidad ESAN, vol. 20(39), pages 105-117.
  • Handle: RePEc:ris:joefas:0089

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    1. repec:eee:intfin:v:55:y:2018:i:c:p:13-28 is not listed on IDEAS

    More about this item


    Market efficiency; Financial firms; Banks; Heterogeneity; Panel data; Structural breaks; Cross-sectional dependence;

    JEL classification:

    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading


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