效率、公平、社会稳定与住房问题——基于世代模型的政治经济学分析

土地和住房是劳动者历史共同体的公共物品。社会是否能够按照效率与公平的原则解决住房问题,其本质是社会是否能够解决劳动者现实具体利益与历史一般利益的矛盾,即个体理性与国家理性的矛盾。公共权力通过经济制度对租金的抽取和使用是解决住房问题的基本途径,不同制度模式具有等价性。在社会稳定的约束条件下,公共权力对租金的抽取和使用并不必然保证住房问题的解决符合效率与公平的原则,为此社会还需要具备公共权力良好的政治性质、法律约束力以及劳动者对国家理性道德自觉的条件。     

集群租金视角下的创业企业孵化研究

产业集群是创业企业天然的孵化器,在集群区域内创业,可以获得更大的资源优势和能力拓展空间,产生超额利润即集群租金.而企业家对集群租金的追逐,也成为推动集群创业企业建立和发展的内在动力,并贯穿集群创业过程的始终.不过集群内企业家的寻租行为也面临多个潜在约束,如知识吸收能力、创新能力、创业模式、集群租金的周期性特征等,突破这些潜在约束也就成为实现集群创业企业孵化的关键.     

What moves housing markets: A variance decomposition of the rent–price ratio

We apply the dynamic Gordon growth model to the housing market in 23 US metropolitan areas, the four Census regions, and the nation from 1975 to 2007. The model allows the rent–price ratio at each date to be split into the expected present discounted values of rent growth, real interest rates, and a housing premium over real rates. We show that housing premia are variable and forecastable and account for a significant fraction of rent–price ratio volatility at the national and local levels, and that covariances among the three components damp fluctuations in rent–price ratios. Thus, explanations of house-price dynamics that focus only on interest rate movements and ignore these covariances can be misleading. These results are similar to those found for stocks and bonds.     

Immiserizing Growth and the Metzler Paradox in the Ricardian Model

Conditions for the occurrence of immiserizing growth and the Metzler paradox are analysed in the Ricardian model when consumers in the foreign country have Leontief preferences while consumers in the home country have Cobb-Douglas preferences. By using specific functional forms, the conditions for the occurrence of the two paradoxes are defined in terms of the exogenous parameters of the model rather than endogenous variables such as the foreign import demand elasticity in the conditions of Bhagwati (1958) Bhagwati, J. N. 1958. Immiserizing growth: a geometrical note. Review of Economic Studies, 25: 201–205. [Crossref], [Web of Science ®] , [Google Scholar] and Metzler (1949a Metzler, L. A. 1949a. Tariffs, the terms of trade and the distribution of national income. Journal of Political Economy, 57: 1–29. [Crossref], [Web of Science ®] , [Google Scholar], b Metzler, L. A. 1949b. Tariffs, international demand, and domestic prices. Journal of Political Economy, 57: 345–351. [Crossref], [Web of Science ®] , [Google Scholar]). It is shown that the simultaneous occurrence of both paradoxical results is possible for some parameter values.     

Rethinking the effectiveness of asset and cost retrenchment: The contingency effects of a firm's rent creation mechanism

This paper posits that the efficacy of different retrenchment strategies depends upon the firm's core rent creation mechanism. We focus on two distinct mechanisms of rent creation: Ricardian rent creation based on the exploitation of resources and Schumpeterian rent creation based on explorative capabilities. We argue that cost retrenchment may have detrimental effects on firms with a relatively high Schumpeterian rent focus. On the other hand, asset retrenchment may erode the basis for future rent creation for firms with a higher Ricardian rent focus. Our findings based on a sample of large nondiversified Japanese firms highlight the differing degrees of fragility and recoverability of the two rent creation mechanisms in the context of different retrenchment strategies. Copyright © 2012 John Wiley & Sons, Ltd.     

Economic structure and factor payments

There is a growing body of evidence that the labour payment share in national income varies across countries and over time, suggesting that the popular aggregate Cobb–Douglas production function may not capture income share dynamics. There remains conflicting evidence on the importance of natural resource rents among low income economies and on estimates of the rate of return to produced capital. This paper focuses on the structural differences among countries, confirming the importance of the agriculture sector in estimates of labour and land’s share of factor income based on 81 countries at diverse levels of economic development in the year 2005. I find that cross-country data are best modelled by a CES production function with an elasticity of substitution of 0.8 and that many low income countries have a higher return to capital than the United States.     

论比较优势理论的有效性

作为经济学中最重要的理论之一,比较优势理论揭示了贸易模式的产生原因以及贸易利益的来源.然而,自比较优势理论诞生之日起,就受到了来自各方的批评,英有效性一直受到怀疑.本文描述了比较优势理论模型的扩展,并指出在哪些条件下比较优势理论能够成立.通过这样的研究,可以使我们更加充分地认识比较优势理论的有效性问题.     

一个解释中国通货膨胀的可行框架:1981—2006

经过修正的财政主导型制度和价格水平决定的财政理论可以分别对1981—1994年和1995—2006年两个时期的通货膨胀史进行解释,其中前者源于对既有经济学文献的综合分析,后者源于以事实为基础的逻辑推理和最新正式经验研究。一个重要的现实政策含义是,要实现价格稳定和可持续经济增长,中国务必要进行第二次制度变革,其方向是以积极型货币政策与被动型财政政策搭配为基础的货币主导型的李嘉图制度。     

组织间关系:价值界面与关系租金的获取

价值界面与关系租金概念的提出大大地拓展了获取企业内生性成长中各种资源的空间。本文通过价值界面、关系租金的模块化生产范式和关系型交易范式的分析,指出了价值界面与关系租金对于帕累托边界外推、埃奇沃思方盒改进的经济学意义,并进一步得出了价值界面构成与关系租金获取的四维模型,为网络创新提供了积极的研究视角。