密封胶在拉索索端结构中的应用研究

索端结构是拉索的防护薄弱环节,在索端结构中增加密封胶措施是索端密封的一次探索。选取了几种不同的密封胶分别与拉索聚乙烯护套进行粘结,对提高斜拉索的耐久性和安全性有一定的意义。     

Who votes for public environmental goods in California?: Evidence from a spatial analysis of voting for environmental ballot measures

Voting referenda provide direct evidence of the demand for public goods. A number of previous studies have used referenda to analyze the support for public environmental goods. These studies have used aggregate data from large jurisdictional units (usually counties) and summary income measures such as the mean or median, and have usually found that higher income areas offer greater support for environmental propositions. We examine environmental referenda voting in California using census block group data, spatial dependence controls, and detailed income distribution data. We find that household income has a negative marginal effect on environmental referenda voting for most of the income range when using census block data. In addition, controls for spatial dependence significantly reduce the magnitude of most coefficients. This suggests that OLS estimates of referenda determinants are biased. We also show that county level data may be subject to severe aggregation bias and might not be appropriate for referenda studies.     

Financial leverage and market volatility with diverse beliefs

We study a general equilibrium model of asset trading with financial leverage, where the investors can engage in speculative trading with diverse beliefs about the asset??s fundamental value. We show that an increase in the leverage ratio causes the stock price to rise in the current period through a ??leverage effect??, and will result in more borrowing and more stock purchase that pumps the stock price higher in the subsequent period, known as the ??pyramiding effect??. There can also be a ??depyramiding effect?? when the price falls because lenders issue margin calls and force stock sales, contributing to further stock price plummeting. Price changes from depyramiding effect, however, may not take effect when margin calls are not triggered. We demonstrate that, under certain conditions, decreasing leverage ratios leads to lower stock price volatility, measured by the variation of prices caused by an exogenous shock, when the shock is unanticipated. The influences of dispersion of beliefs and available investment funds on the relation between financial leverage and market volatility are also examined. When the shock is anticipated, we demonstrate that reducing leverage ratios may not lower stock price volatility, which poses an important challenge to future studies on this issue.     

Foreign direct investment and business cycle co-movements: The panel data evidence

The previous literature has largely overlooked the possible channels through which foreign direct investment (FDI) might influence business cycle synchronization. In this study we analyze the linkages that exist among FDI, trade and industrial dissimilarity in relation to business cycle co-movements using a panel data set taken from 77 pairs of developed countries. The error component three-stage least squares (EC3SLS) estimates from a simultaneous equations model with panel data are shown to be superior to the estimates obtained from single equation models or simultaneous equations models with cross-sectional data. Our results indicate that FDI serves as a channel of international business cycle transmission that is equally important as the channels of trade and monetary policy. On the contrary, industrial dissimilarity is identified as having an indirect impact on the business cycle correlation through trade and FDI. Furthermore, our findings suggest that in our sample FDI is of the horizontal type and tends to substitute for trade.     

依托线缆产业集群打造先进制造业高地

产业集群是相同的产业高度集中于某个地区的产业成长现象,是区域或产业国际竞争力的重要形成基础,发展产业集群是后起国家及地区从资源优势转变为现实比较优势和国际竞争优势的重要途径.     

简析函电格式规范化对公司的影响

This paper tells about the layout of a business letter and explains some impacts of a unified layout on a company.     

关于教育与就业关系的一个理论模型及实证检验

In this paper, we divide the process of educational development into two aspects: the change in educational structure and the expansion of educational scale. Based on this hypothesis, we analyze the relationships between each of the two aspects and employment respectively. In this paper, the factors and the transmission mechanism of the influence that education has on employment are also explained. Then, the theoretical models of the relationship between education and employment are built up. Finally, we use the empirical data collected in China to test the theoretical models and give explanations to the status quo of the unemployment structure within various educational levels. It suggests that: the development of education in China at present is beneficial to the increase in the employment rate, the increase in the proportion of the laborers with junior school education has negative effects on employment, and the development of higher education creates positive effects on the employment, but no evidence shows any significant correlation between the proportion of the laborers with senior high school education and the unemployment rate. Translated from Xin Zhengzhi Jingjixue Pinglun 新政治经济学评论 (Review of New Political Economy), 2006, 2(1): 46–69     

DETERMINANTS OF A FIRM'S ISO 14001 CERTIFICATION: AN EMPIRICAL STUDY OF TAIWAN

Abstract.   Only rarely have empirical studies analysed the responses of Taiwanese manufacturing firms to ISO 14001, despite firm responses to environmental issues being an important aspect of environmental management. This study empirically examines the determinants of firms' environmental self-governance. Export oriented Taiwanese firms, which face environmental concerns from foreign consumers, are found to be more likely than domestic focused firms to adopt ISO 14001. This study also finds that several firm attributes are decisive for firm adoption of ISO 14001. However, this study does not find any significant impact of local governors' political party affiliation on firms' ISO 14001 certifications.     

清代蚶鹿对渡史迹调查

晋江与台湾一水之隔,是台湾同胞主要祖籍地之一。晋江蚶江与台湾彰化鹿港对渡,从乾隆四十九年(1784年)开始至光绪二十一年(1895年)台湾被日本侵占终止,前后延续110年之久,促成了晋台贸易的全面繁荣。本文在社会调查的基础上,拟就晋江(包括今石狮市)境内有关清代蚶鹿对渡的史迹进行较为全面的介绍,希望能引起海峡两岸学者的关注,加强对这些具有重要历史价值史迹的保护和研究。     

基于全过程管理的雾霾综合防治对策研究

以我国持续多发的雾霾天气为背景,在分析雾霾产生的多方面原因和危害基础上,运用全过程管理分析工具,构建基于全过程管理的雾霾综合防治模型,并将全过程管理的雾霾防治归纳为三个阶段、一个市场、三大主体、五大机制加以阐述,据此提出雾霾综合防治的政策建议。