Until the early 20th century, the world has basically eliminated slavery. Slavery as human beings have ever used a kind of system, the rationality of the existence of its side there? Slavery is institutional economists study on the origin, development and system of a good sample perished.
Why was eventually abolished slavery? This and because along with the economic development and social change, the cost of protecting slavery becomes more and more high, namely the system cost more and more high. As in the American south, long-term since slave is that blacks pronoun. But most of the free namely white, not worry will be slaves, because the skin color, the slaves are black; Even if slaves escape, and easily arguing don't, capture. However, as the free blacks more and more by color, it is hard to distinguish free men and slaves. Results the cost of protecting slavery cost growth, and net income reduced. From slavery's ups can see, any system, if its operation cost is too high, is ultimately cannot continue to exist for a long time. If barzel said, if private requires countries to protect their own certain behaviors, and the cost of protection has exceeded the value of private from this and get, the country will prohibit such behavior.
Slavery may not be a good system, but once is a kind of efficient system. F geer in its "hardship: American slaves economics in his book the immoral, despite serfdom forward from economic factors and only from the Angle of view, for development on the southern economy under the pre-war is a kind of very effective institutional factors. Because the measure results show that: 1, just south of investment for purchase serfs, much higher than the benefits of investment in manufacturing yield; 2, southern plantations of scale economy, effective management and labor and capital in a southern plantation production efficiency, make than northern 35%; 3, and engage in farming, planting of whites, the slaves are more diligent, the production efficiency is better; 4, the southern city of industrial labor slaves engaged in production efficiency, diligence and not inferior at those resources. Urban areas of slaves demand growth than in rural areas suggests, harmonious coexistence with industrialization can under the. 5, and slaves conditions of material life and treatment is not so bad as people imagine, slaves 90% of his production is all to himself. 6, prewar southern economy did not recession, but is growing rapidly, the south's per capita income growth far higher than the north. Mark. Brow lattice think it "may be in American history, one of the most controversial book" ever.
Therefore, no matter how we today with rational evaluation of slavery, but the vision to analysis the emergence, development and slavery in the process of destruction and its cause human looking for a good system is very meaningful.
参考资料:我老师