The above article, published online on 30 September 2013 in Wiley Online Library (http://onlinelibrary.wiley.com/doi/10.1111/isqu.12099/full), has been retracted by agreement between the author, the editors, and the International Studies Association. The article may be accessed in, and should be cited as, its originally published form: in International Studies Quarterly 57, pp. 440–448. doi: 10.1111/isqu.12015.

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