The economic effects of European colonialism refer to the significant transformations in trade, labor, and resources that occurred as European powers established colonies across the globe from the 15th to the 20th century. This colonization led to the exploitation of local economies, introduction of new agricultural products, and the establishment of trade networks that benefited European nations while often crippling indigenous economies. The long-term consequences included both wealth accumulation for colonial powers and persistent inequalities in the regions that were colonized.