LABOUR SUPPLY ESTIMATION AND PUBLIC POLICY

Abstract. Economists devote considerable energies towards refining their econometric techniques to overcome difficulties connected with conducting empirical research. Despite advances in technique. it is not clear whether further refinement in this direction is worthwhile for policy purposes. It may be that no further amount of statistical adjustment of inadequate data will increase understanding, and that better data is simply necessary to add to our knowledge. But rarely is sufficient credit paid to new forms of data. In short, econometric technique is emphasized to the neglect of data innovation, as if new data were merely lying about waiting for an ingenious suggestion for use. This paper surveys advances of the last twenty five years in estimating labour supply for policy purposes with a view towards appreciating the relative contribution of both improvements in econometric technique as well as developments of new data.
After briefly detailing the key parameters which economists have sought to estimate, we describe the early 'first generation' research (circa 1970), which is plagued by problems of unobservable variables, measurement errors, truncation and selectivity bias, and non linear budget constraints. 'Second generation' research constitute attempts to resolve one or more of these difficulties, and the respective contribution of econometric technique and new data is acknowledged and assessed, including the contribution of data generated by large scale social experiments in which participants are randomly assigned to different guaranteed income plans and their labour supply behaviour measured.     

中石化上游领域竞争力和抗风险能力的定量分析

在分析石油公司上游领域竞争力影响因素的基础上，提出了定量评价上游 领域竞争力和抗油价风险能力的定量评价方法，按上游综合竞争力指标将世界石油公司分为三类，第一类公司的指标值均在90以上，第二类公司在55－70，第三类公司在25－35。分析表明中石化集团上游领域竞争力较低，承受体油价的时间很短，但是，中石化集团公司上游竞争力和抗风险能力有很大的改善余地，并提出提高竞争力和抗风险能力的措施和建议。     

Cyber-coordinating Mechanism and Strategic Management Accounting

Based on the analysis of the need of a new coordinating mechanism in cyber-value chain, this paper puts forward a cyber-coordinating mechanism, which is a mechanism between market mechanism and firm hierarchical mechanism. It is the theoretical basic point for setting up the system of Strategic Management Accounting in cyber-value chain. This paper conducts the model of Strategic Management Accounting based on cyber-coordinating mechanism, and presents evidence from a case study that was conducted to understand the impact of disintegration on original suppliers and of reintegration on new suppliers in order to support our cyber-coordinating mechanism hypothesis and the application value of the new model of strategic management accounting in cyber-value chain.     

Setting operating policies for supply hubs

This paper deals with the joint management of operations at the supply hub for the customer and the upstream supplier. Different operating conditions are considered, namely, backordering, minimum and maximum specified inventory levels. Some analytical insights on better managing suppliers operating under a vendor managed inventory program are presented. Essentially, we show that the penalty cost imposed on over- and under-stocking, and the min–max policy for hub inventory reside in the power of the hub operator. The relationship between supply hub policy and performance measures is quite complex and non-linear in nature. We suggest a structured hierarchical approach which can help supply hub in achieving balance between various parties involved in chain. A numerical example and an algorithm are included to highlight this result.     

基于混合激励机制的两层供应链产品开发合作博弈分析

针对供应商与制造商在产品开发合作中潜在的风险,建立了动态合作博弈模型,通过对正负激励策略的比较分析,得出两种激励策略按照一定结构混合运用能有效地发挥负激励降低合作风险、正激励增加合作收益的作用的结论。     

Bayesian MCMC Mapping of Quantitative Trait Loci in a Half-sib Design: a Graphical Model Perspective

Graphical models provide a powerful and flexible approach to the analysis of complex problems in genetics. While task-specific software may be extremely efficient for any particular analysis, it is often difficult to adapt to new computational challenges. By viewing these genetic applications in a more general framework, many problems can be handled by essentially the same software. This is advantageous in an area where fast methodological development is essential. Once a method has been fully developed and tested, problem-specific software may then be required. The aim of this paper is to illustrate the potential use of a graphical model approach to genetic analyses by taking a very simple and well-understood problem by way of example.     

产业集群竞争力分析——以辽宁汽车产业集群为例

运用一种研究产业集群竞争力的量化分析工具——GEM模型,构建了辽宁汽车产业集群竞争力评价表,对该集群的各要素进行了竞争力的综合分析。分析结果表明:辽宁汽车产业集群在全国范围内已经有一定的竞争力,但在设施、企业结构、战略和竞争方面得分都低于全国平均水平,已成为制约其进一步发展的瓶颈因素,因而从"基础","企业","市场"方面给出了提升辽宁汽车产业集群竞争力对策建议。     

基于博弈视角的供应链伙伴关系研究

科学技术的飞速发展、经济的全球化以及竞争的日益激烈，使得企业要想在市场上取得成功，就必须和供应商、客户建立紧密的伙伴关系，通过整体协作增强各节点企业的竞争力。对于供应链伙伴关系，可以从交易费用、资源观、博弈论等到不同视角进行研究，本文将从博弈的视角，通过企业间博弈的不同阶段，包括囚徒困境、鹿的陷阱以及单方承诺三个阶段，对供应链内企业间的伙伴关系进行探讨，揭示其内在规律。     

Control of intellectual assets in client relationships: implications for innovation

This empirical study of business‐to‐business service firms examines the determinants and effects of control rights to intellectual assets in a property rights theoretic framework. Regression analyses using survey data suggest that service suppliers that retain control over their intellectual output are more innovative. In long‐term relationships, service firms' clients may thus be better off balancing their need to control outsourced activities with the suppliers' incentives to invest in learning and innovation. Additionally, and aligned with property rights theoretic predictions, service suppliers' bargaining power and their indispensability in service projects are positively associated with their ability to retain control rights. In contrast, innovation capabilities are not very significant in determining control rights allocation between service suppliers and their clients. Copyright © 2008 John Wiley & Sons, Ltd.     

论商业银行核心竞争力的内涵及主要特征

商业银行的核心竞争力是商业银行在激烈的市场竞争中形成的优于竞争对手、保持竞争优势和持续发展的能力,体现了商业银行特殊的市场价值取向、抵抗市场风险和获得持续竞争优势的能力,集中反映了商业银行在市场竞争下的竞争能力和竞争优势。商业银行的知识、信息技术、经营机制、文化和伦理是影响商业银行核心竞争力的主要因素。战略价值性、独特性、延展性、系统整合性和动态性是商业银行核心竞争力的主要特征。