Final answer:
The three principles of exchange are reciprocity, redistribution, and market exchange. Reciprocity is primary in small-scale societies, reflecting social connections based on trust and mutual aid.
Step-by-step explanation:
Anthropologists study the organization of economies, including systems of distribution and exchange. The three principles of exchange are reciprocity, redistribution, and market exchange.
Reciprocity is the exchange of goods and services between two parties with the expectation of a future return. It is primary in small-scale societies, such as hunter-gatherer societies. Reciprocity reflects social connections based on trust and mutual aid.
Reciprocity can take different forms, such as generalized reciprocity, where there is no expectation of immediate or equal return; balanced reciprocity, where there is an expectation of a roughly equal and timely return; and negative reciprocity, where there is an attempt to get something for as little as possible without giving in return.