Since free trade allows the business market to reach overseas outside their own nations, many business man seek to sell and cooperate with the other nation's business cooperation in order to expand their market and gain more profit. This urged the economy to become global with the economic exchange across countries.
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Marcus Mosiah Garvey jr. urged for this separation because he wanted to unite all Africans in a country that they would govern on their own. This is what he founded the Universal Negro Improvement Association (UNIA) for.