1. Endogenous Political Institutions
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3. Baldwin, Richard E., Erik Berglof, Francesco Giavazzi, and Mika Widgren, Nice Try: Should the Treaty of Nice be Ratified? (UK: CEPR, 2001).
4. Barbera, Salvador, and Matthew O. Jackson, "On the Weights of Nations: Assigning Voting Weights in a Heterogeneous Union," http://www.hss.caltech.edu/ jacksonm/Jackson.html 2003.