为什么历史上经营式农业不发展：以无锡为案例

本文基于第一、二次对"无锡、保定农村调查"的资料,分析说明了无锡农村经营式农业的日渐式微,并从出租农地与雇工经营的收益方程、较高工商业发展水平导致的机会成本增加,以及家庭小农场的竞争三个方面分析了经营式农业不发展的原因.我们认为,主要是当地较高但又不足够高的工商业发展水平导致了经营式农业难以发展.较高的工商业发展水平意味着发展经营式农业的高运营成本和高机会成本.不足够高又使得非农产业的需求与人数众多的农业过剩劳动力不相匹配,从而造成了家庭小农场和经营式农场之间的激烈对抗.我们也认为,中国未来的农业农村现代化道路可能会依然呈现出复杂性和特殊性,家庭小农场扮演的角色可能仍然不容忽视.     

绿色增长下的导向性技术创新选择研究

针对如何正确引导 GHG 排放的气候反馈经济损失下导向性技术创新，以实现长期的绿色增长这一问题，基于 DICE 模型，重构导向性技术创新不同的动力要素及其与气候变化之间的内生关系，建立了可体现绿色增长“均衡性”、“包容性”和“可持续性”的非线性最优控制模型。数值仿真结果显示: 气候反馈经济损失不容小觑; 偏于生产的绿色技术创新导向下社会生产力强劲但存在气候环境恶化风险，偏于减排的绿色技术创新导向下气候反馈经济损失小但存在增长动力匮乏风险，二者虽均可实现长期的绿色增长，但中性的绿色技术创新导向会更稳妥; 偏于生产的绿色技术创新导向下人均消费变化率在短期内会显著提升。     

困境与超越：扶贫工作的政治学分析

扶贫开发是国家治理的重要内容，有着丰富的政治意涵，展示着执政党执政、政府治理的基本过程和价值归属。中国的扶贫工作带有着明显的运动式、项目制、压力型的色彩，在取得巨大成效的同时，也有着走向无序化、无效化的风险。以现代国家建设和政党建设的基本理念，构筑多中心的贫困治理格局，建立现代化的扶贫开发的制度体系，走向法治化、制度化、民主化、规范化是扶贫开发的治本之策。     

Testing an Integrative Contextual Career Development Model With Adolescents From High‐Poverty Urban Areas

Variations in the economic recovery rate across the United States have led to even greater chasms that separate the employed, unemployed, and underemployed (DeSilver, 2017 ). Therefore, understanding and supporting the career development of future generations is critical—especially for those who live outside the context of social privilege. The authors examined the applicability of the integrative contextual model of career development (ICM; Lapan, 2004 ) to a sample of 220 adolescents (129 boys, 91 girls) from a high‐poverty urban area. Results indicated that a canonical variate comprising foundational ICM skills (e.g., career exploration, goal setting) predicted a variate composed of ICM outcomes (e.g., self‐efficacy, vocational identity), thus supporting the usefulness of the ICM framework for this population. The skill of setting viable career goals was an especially strong predictor of outcomes. Implications for career counseling with adolescents living in high‐poverty urban areas and directions for future research are discussed.     

教育时空拓展:教师专业成长的机遇与挑战

随着人类文明的进步、社会的发展以及信息技术的普及，教育时间和空间得到迅速拓展。教育时空拓展正如一把双刃剑，给教育活动的实施带来机遇的同时也带来了挑战。教师作为教育活动的主要组织者和实施者，在享受机遇的同时也要迎接教育时空拓展所带来的挑战。通过分析教育时空拓展的内涵与表征，发现教师专业成长正处在社会化、终身化与数字化的发展大潮中，因此教师要充分利用好教育时空拓展带来的机遇，同时慎重应对由此面临的挑战，不断提高应变能力，以促进教师专业成长和教育事业的发展。     

Social capital,guanxi and political influence in Chinese government relations

Social capital has emerged as a promising theoretical approach to understanding political influence in the public relations literature. However, the rationale of using social capital to influence corporate government relations in authoritarian societies is indistinct. To remedy this, we integrate Bourdieu’s (1986) and Lin’s (2001) social capital theories to explore how applying a variant form of social capital (e.g., guanxi) might shape corporate government relations in authoritarian China. A multi-method, qualitative approach was employed involving 44 interviews, participant observation and document review. The findings highlighted an underexamined “vertical” dimension of social capital (i.e., links with authority in a hierarchy), which enables corporations to exercise agency over the pre-existing and often vague regulatory environment. This study adds a new perspective to social capital with hierarchical guanxi that enriches our understanding of guanxi-based political influence in Chinese corporate government relations.     

Aspirations and Setbacks of Working Children in Addis Ababa: Can They Realise Their Futures?

Based on interviews with 45 children, this article looks at the life situations and aspirations of working children in Addis Ababa, Ethiopia, including their hopes, efforts and struggles to make their dreams come true. Pushed by the need for survival, the children work and nearly half go to school. They demonstrate agency, taking care of themselves, supporting families and aspiring to change their lives. However, they also face challenges that make achieving their aspirations difficult. The authors argue that agency alone is not sufficient to help them realise their aspirations unless buffered by supportive structures and systems.     

Postretirement work and volunteering by poverty groups informed by role theory

This study uses role theory to examine the association between postretirement work and volunteering among retirees and to determine whether this association varies across poverty status. Data came from the 2012 wave of the Health and Retirement Study (HRS). The sample was restricted to respondents of older retirees (N = 6,619). We found that postretirement work positively influenced volunteering. However, poverty can be a risk factor of volunteering among older retirees. The positive effect of post-retirement work was found to be more significant in the near-poverty group. We provide an empirical foundation to help inform volunteer programs for retirees.     

属性集容量确定的夹挤式测度模式及其推算模型

迄今，为解决多属性偏好关联决策属性集容量判断指数复杂性难题所提出的λ模糊测度模式与k-可加模糊测度模式，以及建构在它们之上的属性集容量确定的推算模型，尚存在着适用性差的技术不足。为此，以平衡容量判断的可操作性和容量推算的准确性为视角，提出了一种新容量测度模式，即关于容量判断与推算的夹挤式测度模式，并在此基础上通过引入决策者较易判断给出的容量序信息构建了相应的容量推算模型。基于数值模拟的对比分析表明：新模式不仅在应用可行性上高于k-可加模糊测度模式，而且从容量推算的准确性上看也明显优于λ模糊测度模式和k-可加模糊测度模式，因而对实际决策具有更强的适用性。