How elasticity affects human trafficking

Note: This is the ninth post in a weekly video series on basic microeconomics.
Prices can have an effect on the demand of goods and services—even when the “goods” are people. Beginning in 1993, Sudan entered into a civil war, with one of the worst parts being that many people were kidnapped and sold into slavery. Humanitarian groups traveled to Sudan to redeem slaves by buying them out of slavery. Is this good policy? Did it work out, or make it worse? In this video, Tyler Cowen uses the concept of elasticity to analyze the situation.
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