知识是财富生产的精神力量

知识在社会生产与生活中的作用,在人类社会发展的不同阶段是不同的。在近代科学产生和机器大工业出现以前,谈不上有真正的科学知识的合并于生产和科学力并在生产中发挥作用。18世纪以来的机器大工业生产方式的发展,标志着科学向生产要素、生产方法转化和被合并于生产过程的时期的到来。知识积累是一种生产力,达到一定临界点的知识积累,成为推动知识创新和科学进步的内在力量。积累——创新——再积累——再创新的累进式发展,是知识进步的规律也是知识产品扩大再生产的规律。信息革命和当代知识密集的高技术生产方式的到来,标志着人的智能开发和人类向发达的智能人的转换进入了一个新阶段。     

Do the Retired Elderly in Europe Decumulate Their Wealth? The Importance of Bequest Motives,Precautionary Saving,Public Pensions,and Homeownership

We use microdata on a large number of European countries from the Survey of Health, Ageing and Retirement in Europe (SHARE) to examine the wealth accumulation (saving) behavior of the retired elderly in Europe. We find that less than half of the retired elderly in Europe are decumulating their wealth and that the average wealth accumulation rate of the retired elderly in Europe is positive though relatively moderate (6.6 percent over a 3-year period). These findings suggest that the Wealth Decumulation Puzzle (the tendency of the retired elderly to not decumulate their wealth or to decumulate their wealth more slowly than expected) applies in the case of Europe. Moreover, our regression results suggest that bequest motives, generous public pension systems, and the reluctance of retired elderly homeowners to sell or borrow against their owner-occupied housing are the primary explanations for the existence of the Wealth Decumulation Puzzle in Europe.     

担保债务凭证(CDO)定价研究——基于正态与学生氏copula法的比较

利用蒙特卡罗模拟技术,研究担保债务凭证(CDO)的定价问题,对于不同的相关系数,使用正态Copula以及学生氏Copula计算各级分类证券的公平价差,并对正态Copula以及学生氏Copula产生的结果进行比较分析。研究表明,在担保债务凭证(CDO)的定价中,学生氏Copula的性能更好。     

Exploring the link between household debt and income inequality: an asymmetric approach

We investigate the relationship between household debt and income inequality in the USA, allowing for asymmetry, using data over the period 1913–2008. We find evidence of an asymmetric cointegration between household debt and inequality for different regimes. Our results indicate household debt only responds to positive changes in income inequality, while there is no evidence of falling inequality significantly affecting household debt. The presence of this asymmetry provides further empirical insights into the emerging literature on household debt and inequality.     

国债规模的均衡数量及优化

笔者基于世代交叠模型,假定政府执行赤字预算体制,在市场结清的均衡状态下得到了确定国债规模与私人资本规模之比值的解析式。通过模拟发现税率、基本财政支出率、产出关于私人资本的弹性等是决定该比值大小的主要因素。     

Hyperinflation in a small open economy with a fixed exchange rate: A post Keynesian view

This paper examines the emergence of hyperinflation in a small open economy with a fixed exchange rate from a post Keynesian perspective. Three variables play key roles: distributive conflict, external debt, and expectations about the exchange rate. First, we propose a short-run Kaleckian macro model. Then, we study the long-run behavior of the model by endogenizing the price level and foreign indebtedness. We conclude that the existence of expectations about the nominal exchange rate is crucial to explaining the emergence of hyperinflation.     

Technology adoption and accumulation in a vintage-capital model

We present a model of capital accumulation and technology adoption in a vintage-capital framework. The model is an infinite-horizon/infinite-dimensional optimal control model: the firm employs a continuum of technologies (a continuum of heterogeneous capital goods). Capital goods are technology specific, their technology is related to vintage and technology progress. The entrepreneur maximizes the profits obtained by employing a continuum of technologies under the assumption of constant returns to scale and bearing adjustment costs for gross investments. The diffusion of a new technology is established by allowing the entrepreneur to invest in vintage capital goods.     

Interest rates,distribution and capital accumulation – A post-Kaleckian perspective on the US and Germany

We analyse the effects of interest rate variations on the rates of capacity utilisation, capital accumulation and profit in a simple post-Kaleckian distribution and growth model. This model gives rise to different potential accumulation regimes depending on the values of the parameters in the investment, saving and distribution function. Estimating these core behavioural equations for the US and Germany in the period 1960–2007, we find significant and robust effects of interest payments with the expected sign in each of the equations. Our estimation results imply, both for the US and for Germany, that the effects of changes in the real long-term rate of interest on the equilibrium rates of capacity utilisation, capital accumulation and profits, are characterised by the ‘normal regime’: rising long-term real rates of interest cause falling rates of capacity utilisation, capital accumulation and profits, as well as redistribution at the expense of labour income and hence an increasing profit share in both countries.     

Stories,Fables, Parables,and Myths: Greece and the Euro Crisis,Toward a New Narrative

The debt crisis in the Eurozone has generated an intense academic debate about the appropriate policy response to the crisis. At the same time, the general public hears a variety of stories about the crisis, and especially stories about the debt crisis in Greece. This paper deals with the economic significance of stories, in particular with the importance of the Greek "morality tale." Stories are powerful in influencing public psychology, and they can affect the economy through fluctuations in confidence and "animal spirits." The paper considers the development of the Greek story through a web of related stories, fables, parables, and myths. It argues that the story dramatically distorts the reality of the debt crisis in the Eurozone and poses a threat to the global economy through its adverse effects on confidence and "animal spirits." It concludes that Europe needs not only a new policy direction, but also a new narrative about the debt crisis.