Our theory studies why and when political parties choose to hold competitive primary elections. Party leaders can decide the nomination by granting resources and endorsements to a chosen candidate. Alternatively, they can delegate the candidate selection to the party's rank and file by holding a...

Following the 2006 post-electoral crisis, important changes were made to the Constitution and several secondary laws in Mexico. Unfortunately, this new legislation has at least three drawbacks: (1) a weakening of electoral institutions, (2) a reduction in freedom of speech and access to the...