Degrowth or post-growth economics is an academic and social movement critical of the concept of growth in gross domestic product as a measure of human and economic development. Degrowth theory is based on ideas and research from a multitude of disciplines such as economics, economic anthropology, ecological economics, environmental sciences and development studies. It argues that the unitary focus of modern capitalism on growth, in terms of monetary value of aggregate goods and services, causes widespread ecological damage and is not necessary for the further increase of human living standards. Degrowth theory has been met with both academic acclaim and considerable criticism.