Institutional change from an evolutionary perspective: the Mexican experience

The fall of the Institutional Revolutionary Party (PRI) in July 2000 marked a milestone in Mexico’s political history. Throughout its 71 years of incumbency, the PRI had incarnated the set of social, political and economic institutions of the country to the extent of becoming synonymous with governance and stability. Using a simple model in which institutional change is the result of the strategic interaction between citizens, an incumbent ruler and a potential new ruler or entrant, we provide a systematic interpretation of this experience emphasizing the role of evolutionary factors such as history, uncertainty, learning and experimentation.