广西经济发展缓慢的原因分析

本文从东部沿海开放时的行动滞后、发展战略、产业结构调整、投资理念和资源主导型经济等几个方面分析了广西经济发展缓慢的主要原因,并简略地提出广西未来经济发展的对策。     

DESPERATE TIMES CALL FOR DESPERATE MEASURES: GOVERNMENT SPENDING MULTIPLIERS IN HARD TIMES

We investigate state-dependent effects of fiscal multipliers and allow for endogenous sample splitting to determine whether the U.S. economy is in a slack state. When the endogenized slack state is estimated as the period of the unemployment rate higher than about 12%, the estimated cumulative multipliers are significantly larger during slack periods than nonslack periods and are above unity. We also examine the possibility of time-varying regimes of slackness and find that our empirical results are robust under a more flexible framework. Our estimation results point out the importance of the heterogenous effects of fiscal policy and shed light on the prospect of fiscal policy in response to economic shocks from the current COVID-19 pandemic. (JEL C32, E62, H20, H62)     

高级管理人员变更、股权特征与盈余管理——来自中国上市公司的经验证据

本文以2003-2006年我国A股上市公司为研究样本,检验公司发生高级管理人员变更时的盈余管理行为。研究结果表明,发生高级管理层变更的公司,高级管理人员变更的当年存在较严重的调减利润的盈余管理行为;此外,对于发生了高级管理人员变更的公司,如果其控股股东是地方和中央政府部门所属国企或中央直属国企,则其调减利润的盈余管理行为可以得到一定程度的抑制;大股东的制衡度越大,公司盈余管理的幅度也将越小。研究结果还显示,当发生高级管理人员变更时,上述因素对公司调增利润的盈余管理行为基本没有影响。     

绩效考核对员工反伦理行为的影响:研究综述与未来展望

绩效考核作为一种有效的管理方法一直受到组织高度重视,但各种组织都不同程度的存在着因绩效考核引起的管理伦理问题,而且它们是相互影响的。国外对这方面的研究已有几十年的积累,而国内的相关研究才刚刚起步。本文首先回顾了国内外有关绩效考核对员工反伦理行为影响的相关研究,然后就未来的研究方向提出了看法和建议。     

进入权与组织控制

本文深入讨论了R-Z理论的两个核心概念:进入权和人力资本专用性投资,指出进入权的配置过程伴随着代理人进行专用性投资和委托人持续控制的过程,而组织控制构成了委托人对进入权配置过程进行持续控制的基础。委托人必须借助组织控制限制代理人的讨价还价能力,一个关键途径就是减弱代理人拥有的不对称信息优势。     

Development of a Screening Approach to Interpret Human Biomonitoring Data on Volatile Organic Compounds: Reverse Dosimetry on Biomonitoring Data for Trichloroethylene

A screening approach is developed for volatile organic compounds (VOCs) to estimate exposures that correspond to levels measured in fluids and/or tissues in human biomonitoring studies. The approach makes use of a generic physiologically-based pharmacokinetic (PBPK) model coupled with exposure pattern characterization, Monte Carlo analysis, and quantitative structure property relationships (QSPRs). QSPRs are used for VOCs with minimal data to develop chemical-specific parameters needed for the PBPK model. The PBPK model is capable of simulating VOC kinetics following multiple routes of exposure, such as oral exposure via water ingestion and inhalation exposure during shower events. Using published human biomonitoring data of trichloroethylene (TCE), the generic model is evaluated to determine how well it estimates TCE concentrations in blood based on the known drinking water concentrations. In addition, Monte Carlo analysis is conducted to characterize the impact of the following factors: (1) uncertainties in the QSPR-estimated chemical-specific parameters; (2) variability in physiological parameters; and (3) variability in exposure patterns. The results indicate that uncertainty in chemical-specific parameters makes only a minor contribution to the overall variability and uncertainty in the predicted TCE concentrations in blood. The model is used in a reverse dosimetry approach to derive estimates of TCE concentrations in drinking water based on given measurements of TCE in blood, for comparison to the U.S. EPA's Maximum Contaminant Level in drinking water. This example demonstrates how a reverse dosimetry approach can be used to facilitate interpretation of human biomonitoring data in a health risk context by deriving external exposures that are consistent with a biomonitoring data set, thereby permitting comparison with health-based exposure guidelines.     

四川旅游客源市场及消费结构分析

四川拥有大量的世界自然文化遗产。旅游资源丰富,其优美的自然环境和浓郁的文化氛围吸引了大批游客,使其成为国内旅游发展较为发达的地方。本论文通过对四川旅游客源市场进行分析。从不同市场角度解析了目前的现状;从旅游六大要素剖析了四川旅游消费结构现状及存在的问题,并据此提出解决消费结构存在问题的措施,以期能促进四川旅游的快速健康发展。     

制度变迁的经济原因与困难 ———使鹿鄂温克族裔文明兴衰的启示

一种文化的衰落背后,往往隐藏着现实的经济力量。使鹿鄂温克族传统文化的衰落,并不主要是因为生态移民政策的失误,也并不是由于对民族文化的保护不足所致,而是因为社会经济条件的变化,使得传统生产方式和相应的制度不再能适应人们的生存需求,而不得不被放弃。资源的日益稀缺,竞争的日益激烈,使人们必须寻找更有效的产权规则。但规则的改变,可能使得原来的强者成为弱者,成为变革的牺牲者或反对者。如何对不同主体的利益给予合理照顾和协调,是制度变革成功的关键。     

活性艳红x-B电化学氧化研究

研究了在电解条件下,以ＮａＣｌ和Ｎａ２ＳＯ４作电解质,用电解法氧化染料活性艳红ｘ－Ｂ的机理．经比较对照说明采用不同电解质时,均以ＣｌＯ－氧化机理为主要特征