Answer: Capitalism.
Explanation:
Capitalism was the trend that inspired migration policies in the 80s and 90s, since migrants saw in this system the possibility of generating wealth and obtaining interest through them. For them it was clear that through their traditional system of their respective countries could not achieve it due to multiple factors such as the slow industrialization of some countries in the case of Latin America, as well as the lifting of some dictatorships, added to the desire to have better conditions of life, were the reasons that motivated the migratory boom, turning to the Capitalism in a marked tendency at that time.