寡头竞争市场下共同配送定价方法研究

共同配送采用多个企业联合组织起来实施配送活动的方式，其优势越来越受到重视，关于共同配送的理论研究也越来越多，但是对于定价问题还一直是个难题。在前人研究的基础上，引入共同配送服务质量因素，建立寡头竞争市场下共同配送定价模型，并设计粒子群算法，采用帕累托改进方法和总收益最大解方法对模型进行具体求解，得到相关的结论，最后验证了模型和算法的有效性。     

A methodology for class analysis: Agricultural investments and agrarian change in South Africa

This paper presents a class-analytic approach, which combines a “labour exploitation criterion” with class typologies developed for the South African context and the author's additions. The labour exploitation criterion distinguishes between rural classes based on the degree to which one employs others, works for others, or works for oneself. I combine the principal indicator of “labour exploitation” with the income contributions of social grants, ownership of farming assets and livestock, and the contribution of agricultural production to simple or expanded reproduction. Debates around class formation are explored in the context of a comparative analysis of two joint venture (JV) dairy farms, located in the Eastern Cape Province of South Africa, which involve residents as both landowners and workers. A class-analytic approach illuminates the emerging agrarian class structure that a JV-type intervention both reflects and in turn conditions, in dialectical fashion, with important implications for debates around agrarian change in South Africa.     

Consumers’ reaction to automobile recalls: The role of corporate non-market strategies and interstate relations

We investigate how the two signals of non-market strategies of foreign automakers (i.e. the domestic share of ownership and recognition of social responsibility) and the relations between China and the foreign automaker’s home country (i.e. interstate relations) jointly affect the business performance of Sino-foreign joint venture automakers (SJVAMs) when an automobile recall event occurs. Analysing 422 automobile recall events in 2013–2019 befalling SJVAMs in China, we find that the domestic share of ownership and recognition of social responsibility can buffer the negative impact of recalls on SJVAMs’ business performance. Meanwhile, the buffering effect of recognition of social responsibility is stronger when the domestic share of ownership is lower. Additionally, the buffering effects of domestic share of ownership and recognition of social responsibility are stronger when the interstate relation is poorer. We discuss our contributions to research on corporate legitimacy and crisis management.     

Individual investors and social ownership structures in the UK before the 1930s: Joint holdings and trustee investment

After the introduction of limited liability, a growing number of individuals in Britain from a widening social spectrum, including the less affluent, began to own stocks and shares. Drawing upon a unique and large dataset of 35 848 investors between 1870 and 1935, this study analyses joint holdings which have been a neglected aspect of investor behaviour. Our findings reveal that joint holdings were quite common and that about one in five UK investors were involved in a joint investment. Men were more likely to be joint holders than women for reasons related to institutions of social ownership such as trusts and executorships.     

论有限责任公司夫妻股权的法律结构：基于信托的视角

有限责任公司夫妻股权具有夫妻财产和公司股权的双重团体结构，二者的“嵌套”引起解释论矛盾，合理的解决路径是将股东身份和股权利益进行分离。信托结构是理解夫妻股权关系的一个可行的样本。夫妻股权结构基本符合财产独立性和信义义务等信托的形式要求，且二者均具有区隔财产管理与家庭生活、分离财产管理意志、提高财产利用效率、降低交易成本的功能。根据与信托的类比解释，登记于夫妻一方名下的股权，登记方的单方处分为有效处分，但处分结果受信义义务的制约。在离婚财产分割中，夫妻双方可就有限责任公司股权达成信托式协议，并通过无表决权股或设立股权信托的方式处理股权。在股权继承中，在世配偶成为有限责任公司股东需经其他股东过半数同意，若其他股东不同意，需在无表决股权、股权信托、股权收购中选择其一以保障在世配偶的权利。     

This is what you came for? University–industry collaborations and follow-on inventions by the firm

The positive impact of university–industry collaborations on firms' innovative performance is well recognized. However, to date, the existing heterogeneity within university–industry collaboration processes and the sources of value creation underlying the resulting inventions are left underexplored. As a result, our understanding as to why some of the joint inventions resulting from such collaborations turn out to present a more fertile source of follow-on developments and value for the collaborating firm than others is limited. The present paper sheds light on this question through the application of a knowledge recombination perspective. Hence, we open the black box of innovation and put a spotlight on the knowledge components that make up the joint inventions resulting from university–industry collaborations. We evaluate how the nature—scientific versus technological—and origins—internal versus external to the collaborating partners—of these knowledge components relate to the inventive impact of the partners' joint invention. Examining a sample of 9102 USPTO co-patents, joint inventions created through university–industry collaborations are shown to be most fertile as a source of firm follow-on inventions when they are the result of a recombination process that includes technological knowledge components stemming from both collaborating partners. This effect is most pronounced when the partners' technological knowledge contributions are moderately similar. In contrast, when the joint technology development takes place in a technology domain that is novel to the firm, the resulting joint inventions are most fertile as a source of firm follow-on inventions when the university contributes through the input of technological knowledge components situated in exactly this technology domain that is novel to the firm. Remarkably, no evidence for such direct effects is found regarding the partners' scientific contributions. Together, these findings provide important insights for firms who intend to spur their internal technology development through collaboration with a university partner.     

一种应急救援索系统的开发应用研究

在地形、地势复杂的地区输送应急救援人员或物资面临着道路中断等情况。为了解决这类问题,依据国标规范和实地工况,提出了小型救援系统的基本设计要求和工作原理,设计了结构参数。针对该救援系统的承载索部件,阐述了其设计方法和力学计算过程,并建议采用超高分子量纤维绳替代钢丝绳的设计,以降低系统成本,提高工效,然后对该救援索系统的牵引驱动模块进行了设计计算。在湖北省某地,采用机械提升倒装法对该救援索系统进行了现场组装、调制和试验,证实了在复杂的地理条件下利用临时组装架空索道实现小型物资应急输送的可行性,为实现经济物资的远距离、快速架设索道应急输送技术开发提供了数据支持及设计试验方法,具有一定的推广应用意义。     

Repayment performance of joint-liability microcredits: Metropolitan evidence on social capital and group names

This study empirically tests the predictions of four primary theories applicable to joint-liability microcredit programs’ repayment performance using an administrative data in a metropolitan setting. We introduce a new variable, group names, as a proxy for social capital to capture cooperation, solidarity, and drive for success, which shows a significant positive impact of 9.9% on repayment performance. Precise calculations of residential distance between group members show a deterioration of repayment performance by 1.1% with a 15-min increase in minimum walking distance. The results also show that joint liability, sectoral diversification, type of sector that the borrowers facilitate, the ratio of new members in a group, characteristics of loan officers, loan amount, interest rate, income-loan amount coverage ratio, the existence of senior members, average education, and diversity in income streams significantly affect repayment performance.     

Pro-cyclicality beyond business cycle

We show that pro-cyclicality is inherent in risk measure estimates based on historical data. Taking the example of VaR, we show that the empirical VaR measure is mean-reverting over a 1-year horizon when the portfolio is held fixed. It means that a capital requirement rule based on historical measurements of VaR tends in calm times to understate future required capital and tends in volatile times to overstate it. To quantify this pro-cyclicality, we develop a simple and efficient methodology, which we apply to major equity market indices. We make the interesting point that the pro-cyclicality property holds true even in a world with constant volatility, though the empirical magnitude of the mean-reversion is greater than what would be observed in that special case.     

跨区域合作：沪澳共建青年科技创新人才协同培养机制研究

人才是第一资源，创新是第一动力。推动青年科技创新人才培养跨区域合作对我国人才强国战略的实施具有重要意义。对上海与澳门两大城市间青年科技创新人才协同培养机制展开研究，利用熵值法分析目前沪澳青年科技创新人才培养机制中存在的问题，使用ESDA（探索性空间数据分析）法探究跨区域合作中人才效应的空间依赖性和空间异质性。结果表明：水平发展层面，澳门的青年科技创新人才培养综合评价得分总体高于上海，两个城市的总体综合得分都呈现递增趋势；空间发展层面，沪澳青年科技创新人才培养产出呈现出空间负相关的集聚模式，上海、澳门分别呈现高-低、低-高集聚的空间格局，上海具有更好的人才“虹吸效应”。基于研究结果提出完善产学研人才培养机制、深化沪澳青年科技创新人才国际合作、加大青年科技创新人才培养力度等建议。