关于合同责任系统的探讨

合同过程分为成立、生效、履行和履行完毕四个阶段。与此相对应 ,合同责任分别有三种样态 :先合同责任 ,即合同生效前之订立阶段的缔约过失责任和成立后至生效前的效力过失责任 ;合同中责任 ,即合同生效后至履行完毕前之违约责任 ;合同履行完毕后之后合同责任。这三种合同责任样态以诚实信用原则为理论基础。共同构建合同责任系统。     

废旧手机回收管理国际经验及对我国的启示

随着经济发展和技术进步,手机普及率日益提高,更新换代速度也越来越快,手机销售量和废旧手机产生量都急剧增加。首先梳理了我国涉及废旧手机管理的相关政策法规,并分析了废旧手机回收处理的现状和存在的问题。然后,借鉴欧盟、美国、日本、韩国等发达国家和地区,及国际组织在废旧手机管理和回收处理方面的经验,从法律政策、生产者责任延伸制度、回收处理体系和环保意识等方面提出了相应的改进建议,以便为废旧手机等小型电子废弃物的管理提供理论依据。     

The minimum approval mechanism implements the efficient public good allocation theoretically and experimentally

We propose the minimum approval mechanism (MAM) for a standard linear public good environment with two players. Players simultaneously and privately choose their contributions to the public good in the first stage. In the second stage, they simultaneously decide whether to approve the otherʼs choice. Both contribute what they choose in the first stage if both players approve; otherwise, both contribute the minimum of the two choices in the first stage. The MAM implements the Pareto-efficient allocation in multiple solution concepts including backward elimination of weakly dominated strategies (BEWDS), limit logit agent quantal response equilibrium, subgame perfect minimax regret equilibrium, level-k thinking, and diagonalization heuristics. Moreover, the MAM is unique under plausible conditions. Overall, contributions in the MAM experiment averaged 94.9%. Quantifying subjectsʼ responses to the questionnaire reveal heterogeneous reasoning processes and highlight the importance of developing mechanisms that implement the desired social choice outcome in multiple solution concepts.     

Learning to Argue with Intermediate Macro Theory: A Semester-Long Team Writing Project

The authors describe their experience with integrating a semester-long economic analysis project into an intermediate macroeconomic theory course. Students work in teams of “economic advisors” to write a series of nested reports that analyze the current state of the economy, and propose and evaluate policies for a decision-maker. The project simulates real-world policy consulting with an emphasis on applying economic theory and models. The authors describe the project setup and how to tailor its theme to current events, explain methods for keeping it manageable in larger classes, discuss student learning outcomes, and document course evaluation results. Besides improving the learning experience, this project prepares economics students to contribute their own views to policy debates and buttress them with tight macroeconomic reasoning.     

Minimum wage,trade and unemployment in general equilibrium

The path‐breaking work of Card and Krueger, showing that a higher minimum wage can increase employment, turned the age‐old conventional wisdom on its head. This paper demonstrates that this apparently paradoxical result is perfectly plausible in a competitive general equilibrium production structure of a small open economy with a non‐traded good, without recourse to monopsony, spatial heterogeneity, heterogeneity of consumers and so on, the usual theoretical drivers behind the result. Following Jones and Marjit, we build a simple general equilibrium model with production complementarity and we show that a higher minimum wage can raise aggregate employment. Expansion in the non‐traded sector following a wage hike may be consistent with the overall expansion of the export sector in a multi‐good framework, an unlikely outcome in a conventional two‐good model which cannot accommodate with production complementarity.     

生产性服务业发展途径、动力与限制因素：基于制造业出口的引致需求视角分析

发展生产性服务业已经成为经济转型的重点话题,引致需求的角度能够提供一个深入了解生产性服务业发展规律的准确视角。从经验分析出发,运用投入产出模型与多层线性模型,得到以下结论：制造业发展高度不够所导致高品质有效需求不足,是生产性服务业发展缓慢的主要原因;目前制造业投资仍是生产性服务需求扩大的主要动力,但出口作用的潜力较大;从异质性角度出发,不同制造业类型对生产性服务业发展的拉动作用存在差异,我国目前的制造业结构不利于生产性服务业进一步发展。     

湖南省生产性服务业就业吸纳能力的实证分析

运用就业弹性方法和投入产出方法,对湖南省生产性服务业的就业吸纳能力进行实证分析,结果显示：总体上湖南省生产性服务业就业吸纳能力强,就业增长空间较大;内部各行业对就业也具有较大促进作用,但各行业对就业的贡献程度存在差异.因此,加快生产性服务业发展对解决湖南省就业问题意义重大.     

《云笈七签》中的善恶思想

《云笈七签》是宋代道教的一部类书,其中包涵了丰富的善恶思想。其中对善恶之源头的探讨可以追溯到元神之阳、三魂七魄、三尸九虫等方面,善恶可以从得道之人、修炼丹药以及祸福寿夭等方面得到表现,而修善则要从修心、积善、去恶等角度去完成,此外,道教对善恶报应做了非常详细的描述。当代社会中仍可以看到道教善恶思想的影响。     

生产性服务业内部的关联分析——基于投入产出表的天津例证

运用投入产出法对生产性服务业内部各行业之间的关联效应进行研究,通过实证研究表明,天津市生产性服务业内部各行业间关联程度不同,其中交通运输、仓储和邮政业表现突出;与中国平均水平相比,天津生产性服务业各行业更容易拉动天津市生产性服务业的发展,但从天津生产性服务业内部结构主要构成看,天津生产性服务业内部结构不尽合理,应在保持现有结构的同时,注重发展租赁和商务服务业等新兴产业,打破技术类服务业的发展制约,优化产业结构,促进天津市生产性服务业进一步发展。这一研究对于生产性服务业产业发展具有一定的理论和现实意义。     

生产性服务业集聚机制与耦合悖论分析——来自长三角16个核心城市的经验证据

本文从全球价值链与国内价值链互动关系出发,分析了生产性服务业的空间集聚机制,并以长三角16个核心城市为例对生产性服务业集聚的现状及其耦合悖论进行了理论解析和实证检验。本文研究的主要结论有,第一,在跨国公司主导的国际生产体系中,长三角以代工方式参与国际分工的模式,客观上导致制造业和生产性服务业的空间集聚存在着非同步性;第二,长期以来长三角过度依赖加工贸易方式参与国际分工体系,在很大程度上限制了生产性服务业集聚的程度,原因是跨国公司在对外投资时往往倾向于自带服务,生产性服务外化程度较低,长三角这种低端嵌入的外向经济模式,严重抑制了生产性服务业的发展和空间集聚;第三,信息技术对长三角生产性服务业的驱动作用较弱,长三角虽然是我国高等级的城市群,但技能型人才与生产性服务业的匹配程度并没有达到预期的效果。为此,在第二波全球化中,迫切需要整合全球创新要素来提升国内创新链。