The Mexican Power dataset.
In Mexico, political power has been in the hands of a relatively small set of people who are connected by business relations, family ties, friendship, and membership of political institutions throughout most of the 20th century. A striking case in point is the succession of presidents, especially the nomination of the candidates for the presidential election. Since 1929, each new president was a secretary in the previous cabinet, which means that he worked closely together with the previous president. Moreover, the candidates always entertained close ties with former presidents and their closest collaborators. In this way, a political elite has maintained control over the country.
The network contains the core of this political elite: the presidents and their closest collaborators. In this network, edges represent significant political, kinship, friendship, or business ties.
Notwithstanding the fact that one political party (the Partido Revolucionario Institucional) won all elections in the period under consideration, two (or more) groups within this party have been competing for power. The main opposition seems to be situated between civilians and members of the military. After the revolution, the political elite was dominated by the military but gradually the civilians have assumed power.
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