论构建和谐社会的制度建设

和谐社会作为建设中追求的一种现实社会目标,并不意味着能够完全消除社会矛盾和社会问题,但它有一种能够不断解决矛盾和化解冲突的机制,以及一系列在矛盾中仍能保持和谐与快速发展的制度。参与者利益上的博弈要求建立相关制度来保证和谐状态的达成。因此,构建和谐社会要求坚持科学发展观的指导,从多方面加强所需制度的建设与完善。     

推广施工新技术提高工程科技含量

在建筑工程施工新技术推广与应用现状宏观分析的基础上，以“2004年建设部科技示范工程项目”大连开发区文化中心施工新技术应用与推广为实例，分析了如何结合工程实际采用新技术来提高工程科技含量、保证工程质量，并提出了一些措施和对策。     

基于Citespace的物流企业管理研究科学知识图谱分析

通过分析我国物流企业管理的研究历史和现状,归结出当下讨论热点,判断未来研究趋势,为后续我国物流企业管理的发展创新提供参考意见。以CNKI数据库中2005~2019年刊载的371篇物流企业管理文献为数据基础,运用Citespace软件,绘制发文时间、关键词共现等图谱进行分析,研究结果显示:物流企业管理研究的发文量总体呈下降趋势;围绕焦点的研究话题较为分散;企业物流、物流管理、第三方物流、物流成本、对策是高频关键词,代表物流企业管理研究的热点;研究前沿主要体现在绿色物流、服务质量管理、风险管理等主题上。     

Modeling and Measuring Economic Reality: Reply to the Reviews

To begin with, we'd like to express our appreciation to our three commentators for their thoughtful and helpful reviews. Like the founders of the subject, we believe, and our reviewers seem to agree, that structural econometrics has the potential to enable us to develop serious working models of how different economies actually operate, and also to tell us something about the changing patterns of their growth and transformation. But both we and our reviewers agree that there is a great deal wrong with the way econometrics is practiced today.     

学生党组织在学生科研团队建设中的作用

我国从十九世纪九十年代起开始逐渐把科学研究引入至本科教育,这种做法得到了教育主管部门的肯定,推动了大学生科研团队的兴起。学生科研团队是通过参加科学研究实践活动的途径培养大学生的科研、创新、协作能力的科研组织。而在我国大学生科研团队的成员构成之中,相当数量的成员是大学生党员。而目前大学生基层党组织在大学生科研团队建设方面的工作相对滞后,本文就大学生科研团队中学生党组织的角色问题进行了探讨。     

Does oligopsony power matter in price support policy design? Empirical evidence from the Thai Jasmine rice market

In the oligopsony market, farmers may receive low prices and policy analysis assuming perfect competition can yield serious bias results. In this paper, we estimate oligopsony power between processors and farmers and evaluate the welfare impact of the paddy pledging program (PPP), a generous price support program in the Thai Jasmine rice market, with an imperfect competition model. We develop a model that consists of rice supply equation and derived demand equation. We then simultaneously estimate these equations using system estimation methods to recover oligopsony power parameters. Finally, we use these parameters to assess the welfare impact of the price support program. Using annual panel data running from crop marketing year 2001/2002–2015/2016 and exploiting the institutional feature of the PPP, we find strong evidence of some oligopsony power, a moderate level of oligopsony price distortion, and a negative relationship between price support and oligopsony power. We also find that the PPP is inefficient but effective in income redistribution. Moreover, the program benefits both farmers and consumers. With better policymaking decisions, the PPP can be efficient by setting a suitable support price. Therefore, our results show that in the case of the Thai Jasmine rice market, the generally accepted “wisdom” about agricultural price support policy does not necessarily hold, and price support can be designed to improve the efficiency of the market.     

Major Psychological Factors Affecting Acceptance of New Breeding Techniques for Crops

New plant biotechnologies called new breeding techniques (NBT), which will follow the present genetically modified (GM) technology, have appeared and are attracting attention worldwide. The first purpose of this study was to show consumer attitudes toward traditional plant breeding, GM, and NBT crops. The second purpose was to verify the validity of a psychological model determining the acceptance of NBT crops. A survey was conducted in Japan with 657 randomly selected adult participants. The results showed that perceived risk, perceived benefit, trust, sense of bioethics, anxiety, and anger play an important role in the personal and public acceptance of NBT and indicated that trust and anxiety are especially important factors in both situations.     

Wheat variety yield data: Do commercial and public performance tests provide the same information?

Wheat yields from reported performance test results are of economic importance to wheat producers, since their profits depend on selecting the optimal variety for their location. However, our data shows differences in absolute and relative wheat yields between commercial and public wheat breeding program's performance test data in Kansas. Newly available data are used to test if the difference in yields arose from potential selectivity bias, and to determine the contribution of private and public wheat breeding programs to varietal yield improvement during 2007–2012. Both Heckman selection models and multiple regression showed no statistical evidence of the potential presence of selectivity bias rather, managerial practices, agronomic conditions, field location, and inherent genetic traits of the seed variety were identify as the source of yield differences.     

Impact of contracts in high yielding varieties seed production on profits and yield: The case of Nepal

Nepal’s population continues to grow, but the agricultural sector’s performance remains almost stagnant. This has led to a decline in the per capita availability of food. Increasing agricultural productivity is the key to agricultural growth, and one strategy for increasing agricultural productivity is to use improved seeds. This study investigates the impact of contract farming (CF) in high yielding varieties (HYV) of paddy seed production on costs, yield, and profits of smallholder farms in Nepal. Using farm-level data and a non-parametric propensity score matching estimator, the study finds a significant positive impact of contract HYV seed farming on revenues, profits, and yield, and a significant negative impact on total costs of production. Additionally, very small farms (⩽0.43 ha) with CF in HYV paddy seeds tend to gain the most when it comes to yield per hectare. Our estimates reveal that the average smallholder household in Nepal engaged in CF with input conditions receives higher profits. However, farmers engaged in CF with output conditions tend to have higher yields but smaller profits. Finally, farmers engaged in CF in HYV paddy seeds with both input and output conditions have the highest yield gains and significantly higher profits.