Sustainability and externalities: Is the internalization of externalities a sufficient condition for sustainability?

In an important contribution in Ecological Economics, van de Bergh (2010) correctly concludes that sustainability does not imply zero externalities. However, he continues with the Delphic statement "(Delphic statements were uttered by the renowned oracle of ancient Greece at Delphi. They were phrased in such a way as to be self-fulfilling because alternative interpretations covered every possibility.)" "Without externalities the problem of sustainability vanishes". If this statement refers to an impossible economic process that produces no externalities then he is right. However, it might be interpreted as stating that whenever environmental policy internalizes environmental externalities then sustainability will be ensured. In this note, I assert that in the real world where externalities prevail, their internalization or neutralization in the traditional way cannot lead to sustainability. Only if internalization takes a very specific form that results in the inviolable preservation of environmental rights of future generations in pure biological terms can sustainability be ensured. After revised the original commentary I resubmit it. The issues raised by the editor have been carefully considered.     

完善我国公司治理和财务治理模式的思考

随着国有企业改革的深化,人们越来越认识到公司治理和财务治理模式不完善是国有企业存在的深层次矛盾,是阻碍国有企业改革的关键所在,因此必须尽快完善我国国有企业公司治理和财务治理模式,才能使其适应市场的变化和竞争的要求。     

The Living Wage,Economic Efficiency,and Socio-Economic Wellbeing in a Competitive Market Economy

Conventional economic wisdom views a Living Wage as costly in term of economic efficiency and competitiveness. I argue, based on x-efficiency theory, that higher wages need not cause any economic harm and can, on the contrary, generate higher levels of material wellbeing. Higher wages can be expected to induce x-efficiency and technological change cost offsets. In this context, an effective living wage, one that is above some subsistence minimum, can have a net efficiency effect on the economy. Therefore, a living wage greater than the wage rate generated by the free market cannot be predicted to generate economic harm. With the institutional parameters in place to realize a living wage, the economic pie can be expected to grow to accommodate the living wage.     

Property rights and information flows: a simulation approach

With the growth of the information economy, the proportion of knowledge-intensive goods to total goods is constantly increasing. Lessig (The future of ideas: the fate of the commons in a connected world. Vintage, New York 2001) has argued that IPRs have now become too favourable to existing producers and that their ‘winner-take-all’ characteristics are constraining the creators of tomorrow. In this paper we look at how variations in IPRs regimes might affect the creation and social cost of new knowledge in economic systems. Drawing on a conceptual framework, the Information Space or I-Space to explore how the uncontrollable diffusibility of knowledge relates to its degree of structure, we deploy an agent-based modelling approach to explore the issue of IPRs. We take the ability to control the diffusibility of knowledge as a proxy measure for an ability to establish property rights in such knowledge. Second, we take the rate of obsolescence of knowledge as a proxy measure for the degree of turbulence induced by different regimes of technical change. Then we simulate the quantity and cost to society of new knowledge under different property right regimes.

OUTPUT FLUCTUATIONS PERSISTENCE: DO CYCLICAL SHOCKS MATTER?

The aim of this paper is to identify the different sources of persistence of output fluctuations. We propose an unobserved components model that allows us to decompose GDP series into a trend component and a cyclical component. We let the drift of the trend component switch between different regimes according to a first‐order Markov process. To calculate an appropriate p‐value for a test of linearity we propose a bootstrap procedure, which allows for general forms of heteroscedasticity. The performance of the bootstrap is checked by means of a Monte Carlo simulation. Our study concerns the USA. We find that cyclical shocks appear to play an important role on the observed persistence of output.     

论中国弱势群体的权益保障

弱势群体的概念虽然现代才出现,但这一群体早已存在,和人类的历史一样古老,对弱势群体的权力保障也有着悠久的历史。与中国历史上的社会保障制度相比,现代社会对弱势群体的保障无论在保障范围、保障制度等方面都有明显的进步,但与西方发达国家相比,还有一定的差距。