城乡居民个人慈善捐赠行为差异实证研究——以辽宁省为例

借助CATI随机调查辽宁省14市及所辖农村中811名居民,采用独立样本T检验、单因素方差分析来研究人口统计学因素对个人日常捐赠行为和特殊捐赠行为的影响。研究发现：文化程度、职业、收入和政治面貌等因素对城乡居民的日常捐赠行为和特殊捐赠行为均有显著影响;性别、年龄和婚姻状况等因素对城市居民的特殊捐赠行为有显著影响,且不同年龄城市居民间的日常捐赠行为差异显著。最后,提出促进居民慈善捐赠的建议。     

Diffusion of mobile telephony: An empirical study in Taiwan

Mobile telephony penetration is a major indicator of mobile telephony diffusion. Taiwan had a mobile telephony penetration of 108% in 2002, ranking first in the world. This study analyzes this accelerated diffusion in terms of growth model and determinants of the diffusion rate. To eliminate the inherent uncertainty associated with choosing the optimal growth model, this study compares the performance of three conventional models, namely Gompertz, Logistic and Bass, to identify the most appropriate model, and to distinguish the forces driving the diffusion rate. Empirical results indicate that the most appropriate model is the Logistic model. Network externalities, which this study shows to be the same as the imitation effect in the Bass model, explain the superiority of the Logistic model. Moreover, market competition, which markedly reduces service prices, is identified as a primary driver of the diffusion rate of mobile telephony in Taiwan. Economic conditions, technological innovation and number of operators are insignificant factors. Finally, mobile telephony is a substitute for fixed-line telephony in Taiwan.     

The effects of ownership concentration and corporate debt on corporate divestitures in Chinese listed firms

This study examines how ownership concentration and corporate debt impact corporate divestitures in China. Corporate divestitures reduce the asset base of a company and the opportunity for expropriation by majority shareholders. In emerging economies, weak legal institutions, combined with equity ownership concentration and high corporate debt, allow majority shareholders to avoid such disciplines. Consequently, the relationship between these governance mechanisms and divestiture activity exhibits a pattern that is different from that in developed economies. Using archival data collected from 1,210 Chinese listed companies during 1999–2003, we found that ownership concentration by the largest shareholder depressed corporate divestitures both in state-controlled and in non-state-controlled firms. The negative effect of corporate debt on divestitures only existed for state-controlled firms. Our finding provides corroborating evidence for principal–principal conflicts in emerging economies. It suggests that corporate strategy in these countries can be better explained by taking into account the unique agency problems that are prevalent in these economies.     

高频焊管机焊接挤压力的微机自适应控制

本文针对高频焊管机焊接挤压的控制,提出一种离散 MRACS 的设计方法。所设计的自适应控制器不仅算法简单,容易实现,而且适用于非最小相位系统。理论分析和仿真实验表明,提出的控制系统结构合理,具有良好的跟随性能和强的抗干扰能力,适合在中、小型高频焊管机上应用。     

地方政府公信力：影响区域经济发展的重要因素

作为一种区域软实力,地方政府公信力是影响区域经济发展的一个重要因素。良好的政府公信力能够为区域经济发展营造公平的市场竞争秩序、促进区域内社会稳定发展以及塑造良好的区域形象。而目前我国一些地方政府公信力存在下降的趋势,在严重影响社会信用环境及地方投资环境的同时,也妨碍了政府与公众之间良好的互动关系的建构,增加了政府管理成本,制约着地方经济的发展。因此,有必要提高政府公信力,为区域经济发展营造一个良好的诚信环境     

Discrete-order admission ATP model with joint effect of margin and order size in a MTO environment

Swarming demands and seasonality periodically induce a stringent capacity problem in the made-to-order (MTO) B2B environment. Desirable order admission is a tactic with minimal application cost for handling this problem. A real-time order admission problem with limited major-customer population and batch-size demand with heterogeneous distributions is modeled as a dynamic and stochastic knapsack problem. The optimality of the Markovian deterministic reward-threshold policy is verified. Optimal policy, basic policy, and the capacity rationing method are compared in the designed experiment. The numerical results suggest great potential for increasing profit using the optimal order admission policy for MTO businesses.     

流通股股东在股权分置改革中是否获得了财富增值？

本文的主要的日是从事后的角度分析流通股股东的股票财富在股权分置改革前后的变化.股权分置改革方案的提出和表决是流通股股东和非流通股股东之间的一个讨价还价过程,利益分配取决于双方的谈判力量.统计结果显示,从总体上看,流通股股东的财富在股改前后获得了7%的增值.非流通股比例、股改批次、控股股东性质、市净率是影响流通股股东获得财富增值的主要因素.虽然非流通股比例越大,非流通股股东支付的对价股票也越多,但是,流通股股东享受的财富增值却越低.非流通股比例与对价水平之间正的相关性掩盖了非流通股股东少付对价的事实.总的来说,对价方案是在维持流通股股东股改前后的财富不受损的基础上制定的,而不是补偿流通股股东历史上对上市公司的投入.     

黔东南乡村旅游发展探究

随着人们的观念由观光旅游转向休闲度假,在城市周边,逐渐形成的乡村旅游正为旅游的发展释放出新的活力。黔东南旅游资源丰富,资源组合状况较好,既有喀斯特地貌的奇山秀水和原始生态的完美组合,又有古朴独特,原汁原味的民风民俗,可根据已有精品旅游景点和红色旅游资源,充分利用其众多民风民俗资源,开发具有发展潜力的乡村旅游品牌精品,而村寨中人民也将由乡村旅游获得充满幸福与文明的生活。     

铅盐生产企业周围环境中铅污染状况及防治方法

通过对铅盐生产企业周围生态环境的调查,发现这些企业周围的土壤、大气、水、底质等环境均受到不同程度的污染,卫生防护距离也达不到环保要求,周围居民生活环境受到威胁.针对污染的特征,提出了铅盐生产企业周围环境中铅污染防治方法.