基于偏离-份额法的河南制造业竞争力分析

制造业是地区工业的重要组成部分,也是国民经济发展的支柱.本文运用偏离-份额分析法对河南制造业的发展状况进行分析,并与全国的发展状况进行比较,从结构和竞争力两个角度分析了制造业内部问题所在,以探讨河南制造业发展的重点,并结合实际为河南制造业的健康发展提出建议.     

国家主体功能区规划实施的几个关键问题

全国主体功能区规划已获得国务院通过并开始实施。作为一项国家空间战略布局规划,主体功能区规划的实施必将作为“十二五”时期及今后一段时期内经济社会工作的重点。为推动主体功能区规划的顺利实施,各级政府需要对主体功能区规划实施的关键问题形成共识。在主体功能区规划实施中,对主体功能区的认识、主体功能区规划实施的主体、主体功能区的划分、主体功能区的协调与调整、主体功能区的监测与评价、主体功能区政策措施落实、主体功能区的考核、主体功能区实施的组织保障、主体功能区规划实施的技术支撑、主体功能区实施的挑战与机遇等是需要重点关注的问题。     

Chinese dietary culture influences consumers' intention to use imported soy‐based dietary supplements: an application of the theory of planned behaviour

The over‐saturated dietary supplement (DS) market in developed countries such as the US spurs the need for foreign market expansion, and the Chinese market provides a great potential for the foreign soy‐based DS industry. This study examined Chinese consumers' intention to use imported (US‐made US‐brand) soy‐based DS based on the Theory of Planned Behavior (TPB). Two alternative models were also examined in which Chinese dietary culture variables, including soyfoods favourability and dining‐out sociability, as well as their interactions with attitudes, were integrated into the TPB model. A cross‐sectional, self‐administered survey was conducted with a sample of 215 subjects (137 females; 78 males) in Shanghai, China. The TPB variables attitude, subjective norm, perceived behaviour control and behavioural intention, as well as the Chinese dietary culture variables: soyfoods favourability and dine‐out sociability were measured. Multiple linear regressions were used to analyze the three models. The statistical results indicated that all three models were statistically significant to predict intention (Model 1: R² = 0.473, P < 0.001; Model 2: R² = 0.505, P < 0.001; Model 3: R² = 0.525, P < 0.001). The results also showed that attitude, perceived behavioural control, and dine‐out sociability were significant (positive) determinants of intention. Soyfoods favourability acted a significant (negative) moderator of the relationship between attitude and intention. Subjective norm had no significant impact on intention. In conclusion, the TPB model was useful to predict Chinese consumers' intention to use imported soy‐based DS, but not all the TPB components weighed significantly in exploring DS consumption in China. The selected Chinese dietary culture variables were much more important predictors than subjective norm. This study makes a significant contribution in the application of the TPB model and in market strategy development for imported dietary supplements in China.     

《工程合同管理》课程教学方法与手段

针对本人所讲课程采用的教学方法,提出多种有效可行的教学方式,在课程教学中,努力突出工程管理专业的特色,注重工程实践,使学生综合素质得到了提高,为就业奠定了基础。     

运动康复与健康专业实践性教学研究与改革

运用文献资料法、问卷调查法、专家访谈法、数理统计法等方法对西安体育学院运动康复与健康专业实践教学体系进行了深入研究与系统改革,以适应目前社会对技能型人才的需求。研究表明:临床医学课程应密切与康复治疗专业课的联系,体现专业特色;应加强校内外教学实习基地建设;重视师资培训与教材建设;应采用多媒体辅助教学手段和病案教学法提高学生分析与解决问题的能力,较早建立学生的临床思维。只有这样,才能培养出高素质的康复治疗学专门人才,满足康复医学事业和人民健康事业的要求。     

CZ法单晶等径生长模糊控制系统设计

针对单晶等径生长过程中主要是对系统的温度和晶体测径环节的控制,介绍了一种基于模糊控制与PID算法的CZ法单晶等径生长控制系统。详细阐述系统的组成,重点介绍系统采用双闭环串级控制。最后通过仿真测试,结果表明,该系统具有对现场温度、单晶直径等参数的合理控制和调节功能,能够有效地改善系统控制性能。     

The impact of production offshoring on the skill composition of manufacturing firms: evidence from Italy

In this work we explore how the international outsourcing of production impacts the skill composition of employment within Italian manufacturing firms. In particular, our aim is to assess whether the choice to offshore production activities to cheap‐labour countries implies a bias in the employment of skilled workers relative to unskilled ones.

Using a balanced panel of firms covering the period 1995–2003, we set up a counterfactual analysis in which, by using a difference‐in‐differences propensity score matching estimator, we compare the dynamics of skill demand for treated and control firms while addressing the possible problem of selection bias.

Our results identify a ‘potential’ skill bias effect of production offshoring. In particular, we find that treated firms tend to show an upward shift in the skill ratio with respect to the counterfactual sample, but coefficients are not significantly different from zero. When we look at the elements of the skill ratio separately, we find that the skill bias is driven by a fall in the employment of production workers (blue collars), rather than by the increase in the employment of non‐production workers (white collars), thus providing further evidence on the unskilled labour‐saving nature of international outsourcing.     

Correcting for the endogeneity of pro-environment behavioral choices in contingent valuation

In contingent valuation studies, observed behavioral choices often enter as independent variables in the willingness to pay function. However, these variables may be endogenously determined when the error term in the behavioral model is correlated with the error term in the willingness to pay model. We investigate the effects of correcting for the endogeneity of a variable, namely membership status in environmental organizations that proxies unobservable characteristics of the respondents. Jointly modeling the membership variable and the willingness to pay response yields an estimate for the effect of the former that contradicts previous findings but is intuitive and agrees with theoretical expectations.     

Formal and informal external linkages and firms�� innovative strategies. A cross-country comparison

Firms increasingly rely upon external actors for their innovation process. Interaction with these actors may occur formally (i.e. through a collaboration agreement) or informally (i.e. external actors acts as sources of information). We analyze the reasons why firms consider it to be important to develop formal and informal external linkages in the innovation process by looking at the role played by firms’ innovative strategies and by taking into account the possibility that a complementarity or substitutive relationship might exist between formal and informal linkages. Data are from the Third Community Innovation Survey (CIS 3), where we have access to firm level micro-data from Sweden, Norway, the Netherlands and the UK.     

工资对产业结构升级的影响——基于中国经济数据的分析

经济增长过程中伴随着产业结构的优化升级。工资不但可以通过工资差异激励劳动力从低效率产业向高效率产业流动,推动产业结构升级,而且可以通过改变消费结构和投资结构进而影响产业结构演变,并为产业结构升级储备高级人才。本文对中国改革开放以来的工资与产业结构的经济数据进行实证研究得出:工资与产业结构之间是正向的相关关系,且两者之间存在双向因果关系。因此,工资水平的提高在一定程度上促进了产业结构的优化升级。