While slavery was cruel and exploitative, for the Europeans were profitable, they obtained money for the slave trade and allowed them to build stronger empires. The demand of labor in the western hemisphere stimulated a profitable commerce known as the triangular trade, on the first leg carried European manufactured goods- mostly cloth and metal wares, especially firearms-that they exchanged in Africa for slaves. The second leg took enslaved Africans to Caribbean and American destinations. Upon arrival merchants sold their human cargoes to plantation owners for two to three times what they had cost on the African coast. Sometimes they changed slaves for cash, but in sugar producing regions they ofter barted slaves for sugar or molasses. Then they filled their vessels' hulls with American products before embarking on their voyage back to Europe.
In the Americas, social transformations were huge. Spanish explorers and conquerors also sought laborers to work lands in the Caribbean and the Americas. As imported diseases ravaged indigenous populations in the western hemisphere, the conquerors found themselves in possesion of vast stretches of land but few laborers to work it. During the 1520's, Spanish authorities introduced slaves to Mexico, Peru, and Central America, where they worked as cultivators and miners.
However, Africa sufered serious losses from the slave trade. The Atlantic slave trade alone deprived African societies of about sixteen million individiuals, in addition to another several million consumed by the continuing change Islamic slave trade during the early modern era, the slave trade also distorted African sex ratios, slavers preferred young men between fourteen and thirty five years of age, this sexual imbalance encouraged Angolans to practice polygamy and brought turmoil and wars in African societies.
Despite massive change, some aspects of life stayed the same. Slavery was common throughout Africa after the Bantu migrations spread agriculture to all parts of the continent. As in other societies, most slaves in Africa came from the ranks of war captives, although criminals and individuals expelled from their clans also frequently fell into slavery. Owners could order slaves to perform any kind of work, punish them at will, and sell them as chattel. African slaves usually worked as administrators, soldiers, or even highly placed advisors.
In conclusion, the Triangular Trade helped to increase population growth, as well as a decrease of population because diseases were transported, also it was lucrative for the development of food crops, arms, and silver in countless nations. Also, new social classes were created such as the criollos, mestizos, mulattoes and zambos. The triangular trade was a profitable technique to obtain a great amount of resources with Europe, Asia, and other lands.