Beyond Regulation: Towards a Cultural Political Economy of Complexity and Emergence

Drawing on and contributing to materialist state theory, the regulation approach and institutional economics for more than three decades, Bob Jessop can certainly be considered one of the foremost Marxist political economists of our time. Recently, he has taken on board the cultural turn in social analysis by developing a highly original cultural political economy of the knowledge-based economy. As a contribution to the further development of a cultural political economy that is sensitive to the cultural dimensions of social life while retaining an emphasis on capital accumulation and state regulation, this article directs attention to the limits of Jessop's approach and suggests possible amendments to the theory. In particular, the article highlights the need to move beyond a concern with regulation towards a cultural political economy of complexity and emergence.     

A gossip based information fusion protocol for distributed frequent itemset mining

The computational complexity, huge memory space requirement, and time-consuming nature of frequent pattern mining process are the most important motivations for distribution and parallelization of this mining process. On the other hand, the emergence of distributed computational and operational environments, which causes the production and maintenance of data on different distributed data sources, makes the parallelization and distribution of the knowledge discovery process inevitable. In this paper, a gossip based distributed itemset mining (GDIM) algorithm is proposed to extract frequent itemsets, which are special types of frequent patterns, in a wireless sensor network environment. In this algorithm, local frequent itemsets of each sensor are extracted using a bit-wise horizontal approach (LHPM) from the nodes which are clustered using a leach-based protocol. Heads of clusters exploit a gossip based protocol in order to communicate each other to find the patterns which their global support is equal to or more than the specified support threshold. Experimental results show that the proposed algorithm outperforms the best existing gossip based algorithm in term of execution time.     

Structural change and blurred sectoral boundaries: assessing the extent to which knowledge-intensive business services satisfy manufacturing final demand in Western countries

This paper focuses on the vertical integration of knowledge-intensive business services (KIBS) into manufacturing sectors, using a subsystem approach to input–output analysis. It aims at correctly assessing the process of structural change that has occurred in the four main European countries (France, Germany, Italy and the UK) over time (1995–2005). It does not focus on KIBS sectors per se, but on their function as carriers and sources of knowledge which influences the performance of sectors, value chains and clusters across industries and within countries. The analysis shows that KIBS’ contribution to satisfying the final demand of manufacturing is in general largely underestimated; that KIBS vertical integration into manufacturing has increased over time in all the countries investigated except the UK; and that the extent to which manufacturing sectors outsource to KIBS is significantly affected by their technological intensity.     

新制度主义的制度分析范式:一个归纳性述评

制度分析是当代社会科学领域一个重要的理论分析工具。20世纪70年代以来,经济学、政治学等重新发现了制度对解释现实问题的重要性,形成了新制度主义的制度分析范式。基于共同的逻辑起点、行为假设和理论工具,制度分析范式形成了不同的制度分析途径,如嵌入性制度分析、立宪制度分析、比较制度分析、历史制度分析和多中心制度分析等。制度分析拓展了社会科学的研究对象,增强了社会科学解释和解决现实问题的能力,越来越多的领域被囊括到制度分析中。     

企业扩张方式与企业短期成长速度关系的实证研究——以资源闲置作为调节变量

文章从知识视角探讨了企业扩张方式，即市场扩张和产品扩张如何与财务资源闲置、人力资源闲置共同影响企业短期成长速度。文章通过100家中国制造业上市公司的数据，对提出的一些假设进行了检验。结果表明，市场扩张方式没有单独对企业短期内的成长速度造成直接影响，产品扩张方式也没有单独对企业短期内的成长速度造成直接影响，并且企业的财务资源闲置对企业扩张方式与企业短期成长速度之间的关系具有调节作用，而人力资源闲置没有调节作用。     

ASYMPTOTIC BEHAVIOR OF DISTRIBUTION DENSITIES IN MODELS WITH STOCHASTIC VOLATILITY. I

We study the asymptotic behavior of distribution densities arising in stock price models with stochastic volatility. The main objects of our interest in the present paper are the density of time averages of a geometric Brownian motion and the density of the stock price process in the Hull–White model. We find explicit formulas for leading terms in asymptotic expansions of these densities and give error estimates. As an application of our results, sharp asymptotic formulas for the price of an Asian option are obtained.     

THE NUMÉRAIRE PROPERTY AND LONG‐TERM GROWTH OPTIMALITY FOR DRAWDOWN‐CONSTRAINED INVESTMENTS

We consider the portfolio choice problem for a long‐run investor in a general continuous semimartingale model. We combine the decision criterion of pathwise growth optimality with a flexible specification of attitude toward risk, encoded by a linear drawdown constraint imposed on admissible wealth processes. We define the constrained numéraire property through the notion of expected relative return and prove that drawdown‐constrained numéraire portfolio exists and is unique, but may depend on the investment horizon. However, when sampled at the times of its maximum and asymptotically as the time‐horizon becomes distant, the drawdown‐constrained numéraire portfolio is given explicitly through a model‐independent transformation of the unconstrained numéraire portfolio. The asymptotically growth‐optimal strategy is obtained as limit of numéraire strategies on finite horizons.     

关于转变张家口旅游业发展方式的思考

面对发展的新形势和新要求,张家口旅游业必须要抓住机遇,转变观念,将发展旅游业提升为国家战略;必须要抓服务要素建设,转变方式,构建大产业格局;必须要扬长避短,转变思路;必须要抓住旅游产业发展的节点抓创新,转变方法,提升旅游产业整体发展水平。     

IPO定价与公司内含价值——基于常山药业的案例研究

如何对IPO公司准确定价是学术界和实务界广泛争议的热点话题。IPO定价准确性的评价依赖于对公司内含价值的判断，选择不同的标准确定公司的内含价值会得出IP0定价过高或过低的不同结论。本文应用可比公司法对常山药业的内含价值进行估计，使用四种可比公司乘数计算的结果表明公司实际发行价格高于公司内含价值，这意味着公司的发行价格存在一定程度的高估现象。与同期证券分析师对常山药业发行价格预测的平均估价水平相比，结果发现多数证券分析师由于过度乐观而高估公司内含价值。本文研究结果表明可比公司法具有计算简单、可操作性强等特点，不仅有助于一级市场中不同投资者对IP0公司的内含价值做出合理的估计，而且可以为二级市场交易中小投资者形成正确的投资决策提供依据，减少超额投资损失。