Ecological economics and neoclassical economics share some elements, due to the historical evolution of ecological economics out of neoclassical economics (Martinez-Alier, 1990; Røpke, 2004, 2005; Spash, 1999). I follow Daly (1992) in his analysis that the special feature
of the ecological economics' conceptual approach to sustainability is the attempt to integrate neoclassical economics and (market) allocation as a minor part of an encompassing conceptual construction. Economics is embedded in society and the biosphere — the analysis focuses on the assurance of an ecological compatible scale of (economic) activities and — given this — a just distribution of the inter- and intra-generational use of ecological resources.