高效液相色谱法和高效液相色谱-质谱/质谱法测定荔枝中对氯苯氧乙酸（钠）

建立了荔枝中对氯苯氧乙酸（钠）残留量的液相色谱和液相-串联质谱检测方法,采用碱性水提取,利用二氯甲烷液液萃取进行净化,用液相色谱方法在280 nm检测,检出限为0.02 mg/kg。在负离子模式下进行液质串联质谱检测,检出限为0.01 mg/kg。本方法的添加回收率在78.2%～106.7%,变异系数为2.0%～12.2%。回收率、检测限等技术参数均能满足相关检测要求。本方法应用于65个实验样品的检测,其中有两个样品为阳性,含量分别为0.032 mg/kg及0.026 mg/kg。     

超高效液相色谱-串联质谱测定苹果制品中的棒曲霉素

建立了简单、快速测定苹果制品中棒曲霉素的超高效液相色谱-串联质谱确证检测方法。样品经乙腈提取,并经Mycrosep 228AflaPat多功能柱净化后,采用超高效液相色谱-串联质谱进行检测。标准溶液在2100μg/L范围内呈线性相关（r：0.999）,不同基质样品中添加回收率为83%98%,RSD〈10%。该方法操作方便、快速,灵密度高,可满足苹果制品中棒曲霉素测定的要求。     

A test of non-identifying restrictions and confidence regions for partially identified parameters

We propose an easily implementable test of the validity of a set of theoretical restrictions on the relationship between economic variables, which do not necessarily identify the data generating process. The restrictions can be derived from any model of interactions, allowing censoring and multiple equilibria. When the restrictions are parameterized, the test can be inverted to yield confidence regions for partially identified parameters, thereby complementing other proposals, primarily Chernozhukov et al. [Chernozhukov, V., Hong, H., Tamer, E., 2007. Estimation and confidence regions for parameter sets in econometric models. Econometrica 75, 1243–1285].     

Mass prestige value and competition between American versus Asian laptop brands in an emerging market—Theory and evidence

In recent years, competition between brands have been linked to mass prestige associated with the brands. Mass Prestige (Masstige) is very important to study, and yet it is a relatively less investigated construct in the literature. This study is an attempt to contribute to the literature grounded in masstige theoretical approach by examining the prestige associated with the four best-selling laptop brands: 1) two American brands (HP, Dell); and 2) two Asian brands (Lenovo and Acer). We analyzed the competition between these brands in the second fastest growing emerging market, India. In order to measure masstige value, we used the Masstige Mean scale (Paul, 2015). The results show that American brands have the potential to be seen as prestige brands while Asian brands are trailing behind in masstige value and competition. Finally, but not less important, this paper discusses the potential reasons for different masstige value of four laptop brands.     

关于促进大众消费的思考

在我国连续几年实行积极财政政策，国民经济保持较高发展速度的情况下，消费市场并没有得到非常大的改善，其中很大的原因是收入分配不合理。消费需求的最主要部分是大众消费，只有提高大众消费水平，才能促进整个消费市场的繁荣。要保持经济发展的高速度，必须利用财税手段调节分配，扩大有货币购买力的大众消费需求。     

质量流量计测量不同品质含水原油的误差分析

阐述了质量流量计密度法测含水原油的基本原理及密度测量精度对原油计量精度的影响；详细描述了质量流量计的密度测量精度为0．003g/cm^3时，轻质原油，中质原油及重质原油含水率相对误差和纯油测量误差随含水率的变化规律，为选择正确的单井产量计量仪表和计量方法提供参考。     

大规模定制下模块制造网络中企业合作赢利模型研究

在介绍大规模定制模块制造网络生产及其特征的基础上,对模块制造网络中企业之间的关系进行了深入探究,构建了企业合作赢利模型.通过对该模型的分析验证,指出了模块制造网络中企业与企业之间的行为是相互影响相互制约的,双方可以通过长期合作机制未规避机会主叉行为,从而得出了模块制造网络模式是保证大规模定制生产模式顺利实施的最佳组织形式的结论.     

Exploring the relationship between media coverage and participation in entrepreneurship: Initial global evidence and research implications

Using a set of variables measured in the Global Entrepreneurship Monitor (GEM) study, our empirical investigation explored the influence of mass media through national culture on national entrepreneurial participation rates in 37 countries over 4 years (2000 to 2003). We found that stories about successful entrepreneurs, conveyed in mass media, were not significantly associated with the rate of nascent (opportunity searching) or the rate of actual (business activities commenced up to 3 months old) start-up activity, but that there was a significant positive association between the volume of entrepreneurship media stories and a nation’s volume of people running a young business (that is in GEM terminology, a business aged greater than 3 but less than 42 months old). More particularly, such stories had strong positive association with opportunity oriented operators of young businesses. Together, these findings are compatible with what in the mass communications theory literature may be called the ‘reinforcement model’. This argues that mass media are only capable of reinforcing their audience’s existing values and choice propensities but are not capable of shaping or changing those values and choices. In the area covered by this paper, policy-makers are committing public resources to media campaigns of doubtful utility in the absence of an evidence base. A main implication drawn from this study is the need for further and more sophisticated investigation into the relationship between media coverage of entrepreneurship, national culture and the rates and nature of people’s participation in the various stages of the entrepreneurial process.

Justifying the incorporation of the materials balance principle into frontier-based eco-efficiency models

Frontier-based models are an alternative to traditional eco-efficiency ratio indicators. This paper considers two different types, environmentally adjusted production efficiency models and frontier eco-efficiency models, and tries to find justification for incorporating the materials balance principle (MBP) in them. Similar importance is attached to the economic and environmental outcomes of a production process. Like economic outcomes can be derived from inputs and outputs and respective prices, some cases allow for deriving environmental outcomes from the production function with the MBP. After an overview of attempts to incorporate environmental issues in production efficiency models and some reflections why MBP has been neglected in environmental economics and production efficiency analysis, the paper gives basic principles to incorporate the MBP in conventional production efficiency methods and shows how this adjustment leads to a more diversified diagnosis of eco-efficiency. Finally, potentialities and bottlenecks are discussed. Exploiting the MBP in production efficiency and eco-efficiency analysis will facilitate more pro-active eco-efficiency research.     

“大众创业、万众创新”战略溯源研究

改革开放以来,多年技术创新实践是“大众创业、万众创新（双创）”战略的现实源头。通过对改革开放以来中国技术创新实践的阶段划分,展现其中“技术驱动”发展到“市场驱动”再突破到“创新驱动”的发展轨迹,提炼出我国技术创新发展背后隐藏的规律,为双创战略找到理论与现实支撑,最后提出相关建议。