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In this article I argue that notions such as ecosystem services and strong sustainability can be best understood and developed within the theoretical framework advanced by the classical political economists, in which a circular conception of the economy is provided. I also argue that the development of notions such as ecosystem services and strong sustainability has been constrained by the dominance of neoclassical economics, which provides a linear conception of the economy and leads to an emphasis on weak sustainability, which in turn springs from an emphasis on substitutability and aggregate capital. When assessing the relevance of classical political economy for studying ecosystem services and strong sustainability I consider not only the contributions of the classical political economists, but also more recent contributions which draw upon the classical perspective, such as Piero Sraffa's and Amartya Sen's. [ABSTRACT FROM AUTHOR]

Popular trends in ecological economics increasingly consign neoclassical economics to the sidelines of modern-day relevancy. The neoclassical tradition is often seen as reliant for its authenticity on a presumption of human avarice - both unbridled consumerism and corporate cupidity - and demanding for its real-world applicability an assumption of continuous economic growth in a world of hard limits. This article examines the question of whether neoclassical theory could instead provide keys to deeper understanding of sustainable consumption. By combining in a single framework neoclassical growth theory, general equilibrium theory and duality theory - and by explicitly considering leisure time - the analysis demonstrates that neoclassical economics yields several useful insights bearing on long-term sustainability. The analysis confirms several tenets of ecological economics and challenges others. Eight propositions emerge from this analysis that could help speed the development of a robust neoclassical theory of sustainable consumption, here branded "golden age" propositions as they strongly echo the "Golden Rule" discoveries of Edmund Phelps. [ABSTRACT FROM AUTHOR]

Abstract: Policy prescriptions for sustainable consumption have been dominated by neoclassical economics, which is built around the notions of market equilibrium, utility maximization, and exogenous preferences. There are concerns that neoclassical economics is inadequate to guide policy prescriptions in the presence of evolving preferences and complex dynamics. Evolutionary economics provides a more realistic account of individual behavior underlying economic processes. It offers a framework for studying complex socio-economic interactions and exploring their properties. As a consequence, it may offer a better approach for the analysis of policies aimed at inducing fundamental changes in behaviors, technologies and institutions in the direction of increased sustainability. However, a coherent evolutionary-economic approach to economic policies has been missing so far. In particular, policy criteria for evaluating evolutionary outcomes and processes are ambiguous. The paper discusses the implications of employing the evolutionary-economic approaches to study sustainable consumption and policy from different ethical standpoints. [Copyright &y& Elsevier]

The paper analyses six international-scale responses to the financial and climate change ‘double crisis’ in order to: review how they define problems and solutions, analyse what underpins the policy choices revealed in these responses (the ‘green turn’), reflect on the implications of the proposed solutions in terms of sustainability and global environmental justice, and to suggest three elements for a paradigm shift towards an ‘alternative’ turn embedded in ecological economics theory. The analysis reveals that responses by leading international organisations continue to appeal to the precepts of neoclassical economy. We argue that from an ecological economics perspective, policy responses under the various labels of green economy, green growth, sustainable growth, green new deal, fall well short of what is needed to fight the environmental crisis and rising inequality across and within countries. The idea of justice and equity that underpins the mainstream approach seems inadequate in terms of sustaining our environmental base and global environmental justice. Based on this critical review, we propose an ‘alternative turn’, centred on three elements of a paradigm shift leading to a new economy where the environmental base and global environmental justice are at the centre of the discourse. [Copyright &y& Elsevier]

Abstract: The differing paradigms of ecological and neoclassical environmental economics have been described in various articles and books and are also embedded in different professional associations. However, we cannot take for granted that the paradigm debates described in the literature are actually mirrored in exactly the same way in the perceptions and opinions of researchers looking at sustainability from an economic perspective. This paper presents empirical results from a German case study on how economists and others involved in sustainability research from different schools of thought think about the issues of sustainability and economics, how they group around these issues, how they feel about the current scientific divide, and what they expect to be future topics of sustainability research. We analyze the data using cluster analysis. Based on a literature survey, we generated forty sustainability economics-related statements and asked 196 sustainability researchers about their degree of agreement or disagreement with these statements. In evaluating our survey results, we discuss to what extent the clusters that we identified do—or do not—represent the two schools of thought of ecological and neoclassical environmental economics. We also propose some fields of research that can help to bridge the gaps amongst sustainability economics researchers while clearly marking others that are more suitable for a scientific ‘competition of ideas’. Key results of the study are: We identify two primary scientific clusters, one clearly confirming the existence of the ecological-economics school of thought, and the other largely capturing the neoclassical environmental view. Yet, there are some surprising exceptions: Both schools of thought share a conceptual definition of sustainability that is integrative in considering ecological, societal and economic dimensions (‘three pillar concept’) and is geared at preserving the development potentials of society. We also find a shared critique of ‘pure economic growth’ strategies in our sample. These shared opinions may provide bridging concepts between the schools of thought. Also both clusters agree with respect to a wide range of future fields of sustainability economics research. Yet, the research agenda of the ecological-economics cluster contains a large number of additional topics, primarily related to social, distributional and evolutionary aspects of sustainable development. Strong divides between the clusters that seem to be more suitable for a scientific competition of ideas are primarily related to the question of how to achieve sustainability, including appropriate environmental policies. [Copyright &y& Elsevier]

The paper builds up from a review of some expected, but other quite surprising results regarding country estimates for the year 2000 of genuine saving, a sustainability indicator developed by a World Bank research team. We examine this indicator, founded on neoclassical welfare theory, and discuss one of its major problems. Theoretical developments from ecological economics are then considered, together with insights from Georgescu-Roegen's approach to the production process, in search for an alternative approach. A model with potentially fruitful contributions in this direction is reviewed; it points the course efforts could take enable sustainability evaluations based on a more realistic set of interrelated monetary and biophysical indicators. [ABSTRACT FROM AUTHOR]