Two variables or parameters or factors if you like that are missing are educational level as 1/ primary, 2/ secondary, 3/ highschool (prepara-torio), 4/ university and 5/ graduate school, and salaried percent of workers. The percent of the 15-65 year old work force that get a salary is A VERY IMPORTANT demographic factor. Monterrey, NL has about 65 % salaried people very close to the level of Mexico City, DF. An improved similar future study would delve into the provincial rather than only the national level.

Nonetheless, the supreme variable is birth rate, TFR which is 2 in cities and 4 in villages as in Chiapas.

Generally, people are concentrated in productive and therefore magnetic targets, the cities. The great challenge is the Latin transition from the farm to the factory with due development of the services like sales. Instistence on rural life leads to strife, or if you prefer the word, war.