Consumerism is a term used to describe the effects of equating personal happiness with purchasing material possessions and consumption. It is often associated with criticisms of consumption starting with Karl Marx and Thorstein Veblen, but can actually be traced back to the first human civilizations.

In economics, consumerism can also refer to economic policies that place an emphasis on consumption, and, in an abstract sense, the belief that the free choice of consumers should dictate the economic structure of a society (cf. Producerism, especially in the British sense of the term).