Empirical Economics

, Volume 43, Issue 1, pp 447–456 | Cite as

Asymmetric causality tests with an application



This article argues that there are several logical reasons for the existence of asymmetric causal effects that need to be taken into account but usually are neglected in the literature. It suggests allowing for asymmetry in the causality testing by using the cumulative sums of positive and negative shocks. A bootstrap simulation approach with leverage adjustment is used to generate critical values that are robust to non-normality and time-varying volatility. An application to the efficient market hypothesis in the UAE is provided. The results show that the equity market is informationally efficient with regard to the oil shocks regardless if these shocks are positive or negative.


Asymmetric causality Positive shocks Negative shocks Efficient market hypothesis Bootstrap The UAE 

JEL Classification

C32 E17 


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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  1. 1.Department of Economics and FinanceThe UAE UniversityAl AinUnited Arab Emirates

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