泛珠三角战略:湖南的定位与发展

"泛珠三角"区域合作是区域经济一体化的必然结果,具有重大的战略意义.湖南作为中部内陆省份,在东西部相继崛起的双重夹击下,如果不抓住机遇迅速融入"泛珠三角"经济圈,尽快找到突破口,就难以改变落后的被动局面.湖南必须用深远的战略眼光来考察发展全局,以积极的姿态主动地参与"泛珠三角"区域经济合作,发挥优势,扬长避短,突出产业重心,坚持实施"核心城市极化、产业集群化、企业集团化"的发展战略,更进一步地推进湖南的现代化进程.     

On behavioral heterogeneity

Summary. An index of behavioral heterogeneity for every finite population of households is defined. It is shown that the higher the index of behavioral heterogeneity the less sensitive depends the aggregate consumption expenditure ratio upon prices. As a consequence, a high index implies a tendency for the Jacobian of aggregate demand to have a dominant negative diagonal.Received: 12 May 2003, Revised: 13 February 2004, JEL Classification Numbers: D 11, E 10.Financial support by Deutsche Forschungsgemeinschaft, grants HI 232/2-3 and KN 567/1-1, is gratefully acknowledged.     

Reconciling Financial Information at Varied Levels of Aggregation*

Financial statements summarize a firm's fiscal position using only a limited number of accounts. Readers often interpret financial statements in conjunction with other information, some of which may be aggregated in a different way (or not at all). This paper exploits properties of the double‐entry accounting system to provide a systematic approach to reconciling diverse financial data. The key is the ability to represent the double‐entry system by network flows and, thereby, access well‐recognized network optimization techniques. Two specific uses are investigated: the reconciliation of audit evidence with management‐prepared financial statements, and the creation of transaction‐level financial ratios.     

Reconsidering Heterogeneity and Aggregation Issues in Environmental Valuation: A Multi-attribute Approach

The economic valuation of complex environmental goods (composed of multiple attributes) is an expanding field of research in ecological and environmental economics. However, several issues are still subjects of debate. This paper focuses on three of them: the linearity of the valuation function in the attributes; aggregation criteria for obtaining social values; and the heterogeneity of individuals’ utility functions. A methodological approach based on Multi-attribute Utility Theory, which enables us to contrast the impact of these concerns on the valuation of environmental goods, is proposed. We employ the methodology to value a protected natural area and, from the results obtained, we can conclude that the non-linearity and the heterogeneity of the individual utility function are relevant aspects of environmental valuation that need to be taken into account when valuing environmental goods.     

基于信息耗损与补偿的会计加总分析——《企业会计准则第30号——财务报表列报》评价

从信息论的角度看,会计实际上是一个数据加总与分解的过程,如果信息使用者的偏好不变,其加总数据必然导致信息耗损,分解数据则必然导致信息补偿。2006年初新颁布的《企业会计准则第30号——财务报表列报》对利润表的列报方式做了较大的变动。本文借鉴信息熵理论,构建了有别于传统的报表编制评价模型,并通过对2001~2005年某上市公司的利润表进行重述,实际考察了《企业会计准则第30号》对利润表的信息耗损与补偿,在此基础上给出了报表编制的一般性程序。     

山西省地级市科技型人才聚集效应的实证研究

在分析科技型人才聚集效应特征的基础上,构建地级市科技型人才聚集效应的评价指标体系,运用了主成分分析法对山西省11个地级市科技型人才聚集效应程度进行了评价和排序,得出了影响山西省地级市科技型人才聚集效应的3个主要因素:科技因素、政府支持因素和生活因素,并根据山西省11个地级市的实际情况提出了相应的对策。     

信任视角下虚拟企业人才聚集冲突治理研究

虚拟企业人才聚集是组织人才聚集的特殊形式,人才聚集既可能产生正效应,也可能发生冲突,增加不信任,从而产生负效应。运用虚拟组织、聚集经济和组织行为学等理论与方法,界定了虚拟组织人才聚集的概念和特征;利用社会燃烧理论构建人才聚集效应方程,探讨了人才聚集劣质化演进过程,研究了人才聚集过程中的冲突类型,分析了认知冲突和情感冲突对人才聚集的影响。在此基础上,为避免人才聚集冲突现象,充分发挥人才效能,提出了人才聚集冲突治理的信任模式。     

On Optimal Instrumental Variables Generators, with an Application to Hedge Fund Returns

In this paper, we propose a new benchmarking procedure lying on cumulants for computing the factor loadings in financial models of returns. We apply this technique to the well-known augmented Fama and French (J Fin Econ 43(2):153–193, 1997) model and compare it with another technique of ours based on higher moments. Our new procedure confirms the fact that the alpha is supposed to decrease when we disaggregate HFR indices to the level of individual funds while correcting for specification errors. Our new technique is therefore useful for hedge funds selection or ranking based on the alpha of Jensen corrected for specification errors. This technique will also be useful for calibrating other financial models of returns like the simple market model or the conditional alpha and beta models.

Convergence of labor productivity across the US states

Most studies of labor productivity convergence among US states base their analyses on state-level GDP per worker. Such aggregated analysis may hide important information about the role of sectors, and changes in the sectoral composition of these economies, in explaining economy-wide convergence results. Using highly disaggregated data for the period 1987–2015 from the US Bureau of Economic Analysis, we examine sectoral unconditional convergence in labor productivity in the US states. Our results demonstrate a general slowing down in the rate of convergence of labor productivity in the latter years of this period. The sectoral analysis also indicates that manufacturing was the primary driver of convergence during the 1987–1997 period, which had the highest rate of convergence; the role of this sector, however, has diminished in recent years. Several factors—such as the decline in interstate migration, rising housing costs in major cities, agglomeration, and structural changes in the US economy that have reduced the role of manufacturing—may have contributed to the rise in the labor productivity differential among US states.     

Studying composite demand using scanner data: the case of ground beef in the US

This article reports tests of aggregation over elementary ground beef products and estimates composite demand elasticities. Results suggest that we obtain reliable information on consumers’ actual ground beef purchases by grouping data according to either lean percentage or brand type. The results also suggest that we obtain reliable information by using the data to form a single ground beef composite. By testing for valid aggregates and providing estimates of composite demand elasticities the analysis provides economists and policymakers with information regarding the effects of food and agricultural policies on consumers and producers that buy and produce ground beef.