Abstract
This article investigates cointegration and causality across the common sectors of the Abu Dhabi Securities Market (ADSM) and the Dubai Financial Market (DFM). Cointegration and Granger causality tests yield evidence of a long-run equilibrium and one-way causality from the ADSM to the DFM across the banking sector, the services sector and the general index. The absence of cointegration and causality across the insurance sectors of the ADSM and DFM is consistent with Squalli (2006) in which the insurance sector of the ADSM is the only sector evidenced to be weak-form efficient. This suggests that comovements and cross-market spillovers may only exist in weak-form inefficient sectors.
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