A gift economy, gift culture, or gift exchange is a mode of exchange where valuables are not traded or sold, but rather given without an explicit agreement for immediate or future rewards. This contrasts with a barter economy or a market economy, where goods and services are primarily exchanged for value received. Social norms and custom govern gift exchange. Gifts are not given in an explicit exchange of goods or services for money or some other commodity.
The nature of gift economies forms the subject of a foundational debate in anthropology. Anthropological research into gift economies began with Bronisław Malinowski's description of the Kula ring in the Trobriand Islands during World War I. The Kula trade appeared to be gift-like since Trobrianders would travel great distances over dangerous seas to give what were considered valuable objects without any guarantee of a return. Malinowski's debate with the French anthropologist Marcel Mauss quickly established the complexity of "gift exchange" and introduced a series of technical terms such as reciprocity, inalienable possessions, and prestation to distinguish between the different forms of exchange.
A gift or a present is an item given to someone without the expectation of payment. An item is not a gift, if that item, itself, is already owned by the one to whom it is given. Although gift-giving might involve an expectation of reciprocity, a gift is meant to be free. In many countries, the act of mutually exchanging money, goods, etc. may sustain social relations and contribute to social cohesion. Economists have elaborated the economics of gift-giving into the notion of a gift economy. By extension the term gift can refer to anything that makes the other happier or less sad, especially as a favor, including forgiveness and kindness. Gifts are also first and foremost presented on occasions - birthdays and Christmas being the main examples.
In many cultures gifts are traditionally packaged in some way. For example, in Western cultures, gifts are often wrapped in wrapping paper and accompanied by a gift note which may note the occasion, the recipient's name, and the giver's name. In Chinese culture, red wrapping connotes luck. Although inexpensive gifts are common among colleagues, associates and acquaintances, expensive or intimate gifts are considered more appropriate among close friends, romantic interests or relatives.