As imperial states began controlling the economy of the colonized territory, interests for the welfare of the colonized peoples had little influence in defining their economic policies. ... Thus, imperialism had a highly negative effect on the economic growth of colonized nations.
Politically:
The long term effects of imperialism on the colonized people are political changes such as changing the government reflect upon European traditions, economic changes that made colonies create resources for factories, and cultural changes that made people convert their religion.
Socially:
According to other authors, the social impact of colonialism depended on the number settlers of European origin, colonially-induced labor migration and the level of colonial investment in the health and education sector. Related to that were different practices of ethnic and/or religious discrimination or privileges.
