I believe that the answer to the question provided above is that <span> establishing smaller ethnic communities within larger communities gives more chance for people to know each other more but this might lead to the </span>conflict between groups.
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•equality
•more rights
• separations between whites and blacks
• stand up for an end to racism
Let's take a look at some command economies: today: North Korea
In the past: The Soviet Union.
We can see that in both cases the countries failed to provide enough food and supplies for their citizens, so one way that command economies influence the citizens of the countries that had them was by inducing hunger. (the same is not true of mixed economies, or not always true).