The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. Abstract: Extending institutional theory, we incorporate a neglected but important component of formal institution, economic nationalism, into a model that specifies its effects on cross-border acquisition success. We suggest that economic nationalism has a dynamic nature and sees the interaction between protectionism and liberalism. As such, it exerts both positive and negative effects on foreign investments, contingent on how these investments are perceived as aligned with the national interests as reflected by national security considerations, foreign relations, and growth strategy. Using a data set containing 7,275 announced cross-border acquisition deals in China during 1985-2010, the study finds that (1) when an acquisition activity targets essential industries or state-owned enterprises, it is less likely to be completed because of provoked national economic security concerns; and (2) when an acquirer brings technology and/or capital, or/and helps to restructure poorly-performing firms, or/and the acquirer comes from a country with good foreign relations with China, the acquisition is considered as safe and helpful for the country's development, and it is more likely to be completed.