劳动力市场的横向分割与纵向分割之比较

本文以劳动力市场的横向分割与纵向分割两种分割系统为线索,力求对分割理论和现实情况进行勾勒与诠释,主要从生成因素、经济效应、应对之策三个维度对两者展开比较,试图对该研究领域的诸多观点进行梳理与整合。     

A STATE-SPACE PARTITIONING METHOD FOR PRICING HIGH-DIMENSIONAL AMERICAN-STYLE OPTIONS

The pricing of American-style options by simulation-based methods is an important but difficult task primarily due to the feature of early exercise, particularly for high-dimensional derivatives. In this paper, a bundling method based on quasi-Monte Carlo sequences is proposed to price high-dimensional American-style options. The proposed method substantially extends Tilley's bundling algorithm to higher-dimensional situations. By using low-discrepancy points, this approach partitions the state space and forms bundles. A dynamic programming algorithm is then applied to the bundles to estimate the continuation value of an American-style option. A convergence proof of the algorithm is provided. A variety of examples with up to 15 dimensions are investigated numerically and the algorithm is able to produce computationally efficient results with good accuracy.     

Strategic Responses to Competitive Pressure: The Case of Township and Village Enterprises in China

This study assesses the configuration between strategic orientation and industrial environment for Chinese township and village enterprises (TVEs), the organizational form which has played an increasingly important role in Chinese economic development and structural reform. We argue that the complexity, dynamism, and hostility of the industrial environment influence TVE managers' perception of competitive pressure, which in turn affects the firm's strategic orientations such as innovativeness, proactiveness, risk-taking, and analysis. Our analysis, based on a survey of TVE managers in Tinjin and Jiangsu, demonstrates that complexity and dynamism of industrial competition have a systematically positive impact on TVE's innovativeness, proactiveness, risk-taking, or analysis. Environmental hostility is not significantly associated with any strategic orientations adopted by Chinese TVEs. Implications of the findings are discussed.     

Do local analysts know more? A cross-country study of the performance of local analysts and foreign analysts

This paper examines whether analysts resident in a country make more precise earnings forecasts for firms in that country than non-resident analysts. Using a sample of 32 countries, we find an economically and statistically significant local analyst advantage even after controlling for firm and analyst characteristics. The local advantage is high in countries where earnings are smoothed more, less information is disclosed by firms, and firm idiosyncratic information explains a smaller fraction of stock returns. It is negatively related to whether a firm has foreign assets and to market participation by foreign investors and by institutions, and positively related to holdings by insiders. The extent to which U.S. investors underweight a country's stocks is positively related to that country's local analyst advantage.     

生态学原理在城市规划中运用的思考

文章讨论了生态一词的涵义及其变化,归纳生态系统与城市的异同点,讨论了生态学原理与城市规划的结合,包括生态学原理及其在城市规划中的应用,当前存在的问题,今后的改进方向等,最后对长株潭规划生态环境专题研究案例进行了介绍。     

种粮大户粮食生产效益的非价格影响因子分析——对江西省种粮大户的调查

通过对2005年江西省种粮大户种粮效益非价格因素的实证分析,发现种粮大户种粮效益与粮食经营规模、机收面积和家庭人数呈正相关关系。而与种粮农户的文化水平、性别、年龄等因素相关性不强。这一结果说明当前农村农业劳动力成本在不断上升,农业投入中劳动力的替代效应逐渐下降;同时,这也是当前政府在粮食主产区的政策支持与引导的结果,说明当前粮食主产区的农业政策是有效的。即推动粮食主产区农村土地流转制度的完善和适度规模经营,对粮食主产区的良种补贴和购买大型农机具的补贴,有利于种粮大户种粮食生产效益的提高。同时,提高农业科技成果物化水平,有利于农业科技成果在不同文化水平的粮农中推广应用。     

对我国企业家制度的几点思考——基于国有企业的视角

企业家是稀缺资源，是推动国民经济发展的主要力量。企业家制度及企业家队伍建设是我国国企改革中一个重要的环节。2003年国务院国资委成立以来，对企业家制度进行了一系列的设计和安排，企业家队伍建设也取得了一定的成效，通过对这些制度的思考提出一些看法。     

从生态文明建设看企业环境信息公开

建设生态文明是我国经济社会发展的重要方向。企业作为经济社会发展的重要主体,其可持续发展水平直接影响国家的生态文明建设。企业环境信息公开是企业为促进与利益相关者之间的环境信息交流而进行的信息披露行为。文章从生态文明建设视角,分析了推进企业环境信息公开的必要性,介绍了我国企业环境信息公开现状及存在的问题,并提出在国家层面做好顶层设计的相关建议。     

公司治理结构、审计费用与审计质量——基于中国上市公司的经验数据分析

从公司治理结构中抽调出以往研究较少的机构投资者持股比例和监事会人数作为变量,来研究公司治理结构与审计质量的关系。同时,又将异常审计费用变动率作为审计费用的替代指标来研究审计费用与审计质量之间的关系。文章选取了中国663家A股上市公司2006~2010年的数据,进行了回归分析,在实证研究的基础上得出了相关的结论:机构投资者持股比例与审计质量呈显著的U型关系;监事会人数与审计质量呈显著的负相关关系;异常审计费用变动率与审计质量呈显著负相关的关系。     

Experiential Learning – A Case Study of the Use of Computerised Stock Market Trading Simulation in Finance Education

Abstract

Finance is a popular programme of study in UK higher education despite it being a challenging subject that requires students to understand and apply complex and abstract mathematical models and academic theories. Educational simulation is an active learning method found to be useful in enhancing students’ learning experience, but there has been limited pedagogic research attention on its use in finance education within the UK. This paper, utilising an on-line survey, provides a snapshot of the current usage of finance-related simulations across the 97 UK universities offering finance programmes. The paper also reports the findings of a case study that offers insights into the effectiveness of introducing computerised simulation into a postgraduate finance course from both a student and tutor perspective. It highlights an enhancing learning experience for students through concrete experience and reflective observation, increasing their understanding of difficult and complex finance concepts.