Globalization is narrowing the wealth gap between the richest and poorest populations around the world. Quality of life indicators like literacy rates, infant survival rates, and life expectancy have all improved globally since the 1970s. The incidence of global poverty has also fallen over this period. The drivers of globalization include scarcity of resources, trade liberalization, exploitation of third world labor, information technology, and expanding global markets. Countries that open themselves up to international trade tend to experience faster economic growth. Globalization is intensifying social connections between distant places such that local events are increasingly shaped by global happenings.