Kula, also known as the Kula exchange or Kula ring, is a ceremonial exchange system conducted in the Milne Bay Province of Papua New Guinea. The Kula ring was made famous by the father of modern anthropology, Bronisław Malinowski, who used this test case to argue for the universality of rational decision making (even among 'natives'), and for the cultural nature of the object of their effort. Malinowski's path-breaking work, Argonauts of the Western Pacific (1922), directly confronted the question, "why would men risk life and limb to travel across huge expanses of dangerous ocean to give away what appear to be worthless trinkets?" Malinowski carefully traced the network of exchanges of bracelets and necklaces across the Trobriand Islands, and established that they were part of a system of exchange (the Kula ring), and that this exchange system was clearly linked to political authority. Malinowski's study became the subject of debate with the French anthropologist, Marcel Mauss, author of The Gift ("Essai sur le don," 1925). Since then, the Kula ring has been central to the continuing anthropological debate on the nature of gift giving, and the existence of gift economies.
The Kula ring spans 18 island communities of the Massim archipelago, including the Trobriand Islands, and involves thousands of individuals. Participants travel at times hundreds of miles by canoe in order to exchange Kula valuables which consist of red shell-disc necklaces (veigun or soulava) that are traded to the north (circling the ring in clockwise direction) and white shell armbands (mwali) that are traded in the southern direction (circling counterclockwise). If the opening gift was an armband, then the closing gift must be a necklace and vice versa. The exchange of Kula valuables is also accompanied by the trade in other items known as gimwali (barter). The terms of participation vary from region to region. Whereas on the Trobriand Islands the exchange is monopolised by the chiefs, in Dobu all men can participate.
All Kula valuables are non-use items traded purely for purposes of enhancing one's social status and prestige. Carefully prescribed customs and traditions surround the ceremonies that accompany the exchanges which establish strong, ideally lifelong relationships between the exchange parties (karayta'u, "partners"). The act of giving, as Mauss wrote, is a display of the greatness of the giver, accompanied by shows of exaggerated modesty in which the value of what is given is actively played down.Such a partnership involves strong mutual obligations such as hospitality, protection and assistance. According to the Muyuw, a good Kula relationship should be "like a marriage". Similarly, the saying around Papua is: "once in the Kula, always in the Kula."