摘要：Industrial ecology (IE) argues the need for an efficient materials economy based on recycling where environmental degradation associated with inputs of new materials and outputs of waste or pollution is minimal. There is often an assumption that efficiency in the use of materials equates to economic efficiency; however, this is not necessarily the case. Central to this tension between engineering and economic approaches to materials efficiency are different conceptual framings of value. Because a large scale shift towards valuing waste materials as future resources involves changes to existing practices of a great many actors and organizations, ranging from consumers and household disposal practices, through to government agencies and multi-national corporations, it cannot be assumed that all operate with similar conceptions of value. This paper reviews current understandings of value in IE and argues that they need to be expanded to accommodate approaches to valuing used goods and materials that manifest across different spatial scales, from household disposal practices to national policy to global production networks (GPNs). The paper focuses, in particular, on understandings of value relevant to metals recycling in Australia and contrast material flow models from IE with other models of material flows and transformations available in the social sciences, including anthropological analysis of the movement of objects through different regimes of value within society and analysis in economic geography that highlights spatial and structural dimensions influential in commodity chains and networks for used products and materials. It concludes by reflecting on the significance of the dynamic and creative tensions inherent in the production of value for recycled metals from Australia.
关键词：value; material flows models; commodity chains; recycling; metals; products; Australia
