"三农"问题新论——在城市化进程中解决三农问题

我国市场经济改革和经济发展的首要任务是农村的货币化和城市化,"三农问题"是当前我国经济结构中最重大的问题.在我国经济高速发展的同时,我国经济也存在着沦为"富人经济"的巨大风险.在这个问题上,提高农业劳动生产率和发展乡镇企业都不能从根本上解决问题,只有通过城市化、通过高速发展的经济来迅速转移农村剩余劳动力,实现农民市民化、农业工业化才能解决"三农"问题,才能使我国经济健康运行.     

劳动关系作为法律关系:兼论劳动法学研究的范式转换

劳动关系和劳动法律关系区分的理论更多是法外视角研究劳动关系问题的结果。法律调整社会关系或劳动关系并非是指存在先在的供法律调整的社会关系,而是指法律通过规范人的行为在当事人之间产生法律关系,该法律关系是社会关系的特殊形式;法律关系产生的过程不是寻找社会关系的过程,而是判断法律规范规定的构成要件是否具备的过程。法律调整劳动关系因此是指出现法律规范的构成要件时在当事人之间产生以一方提供依附性劳动、另一方支付报酬为主要义务的权利义务关系,也即法律意义上的劳动关系。从上述劳动关系的逻辑出发,则事实劳动关系概念需要正本清源,集体劳动关系非法律意义的劳动关系,劳动法律关系、社会劳动关系、个别劳动关系等概念无存在必要。劳动法学研究应实现从法外视角向法教义学研究并重的转换。我国劳动法的规则体系和理论体系应围绕劳动关系展开。     

气候变化对经济金融系统性冲击的物理风险研究

中国作为全球最大的发展中国家,其综合实力伴随着经济、科技的快速发展而不断增强。但我国的极端气候事件趋多趋强,气候风险水平呈上升趋势,影响我国经济社会的发展。金融作为经济运行的核心,在宏观经济中有着举足轻重的作用。为了研究气候变化与经济金融稳定之间的关系,本文对极端气候事件损失体系和区域经济金融稳定性综合体系进行指数合成并构建面板模型探讨气候变化中气温和降水量因素的变动和极端气候事件对区域金融稳定的影响,得出气候变化的物理风险通过极端气候事件对经济发展和金融稳定有负面影响,并根据实证结果提出完善绿色金融市场和优化信息披露制度的政策建议。     

Human–capital investment and the wage gap

Summary. According to empirical studies, the wage differential by skills evolved non–monotonically in the past decades although the relative supply of skilled labor steadily increased. The present paper provides a theoretical explanation for this finding. In our setting, technological change intertemporally alters the human–capital investment incentives of heterogeneous individuals. As a consequence of changing incentives, the time path of the relative wage is U–shaped while there is a rise in the share of skilled workers. Received: November 28, 2000; revised version: January 30, 2001     

宏观经济统计数据结构变化分析及其对中国的实证

对于宏观经济统计数据的结构变化进行分析已成为研究数据质量的核心内容之一。本文从经济系统的角度运用联合估计诊断模型对我国 3 6个宏观经济时间序列的结构变化进行了全面的分析 ,发现了数据异常的特点和规律。研究结论表明 :大部分异常点的出现或多或少都是以聚集成堆的形式出现的 ,它们之间存在深刻的内在联系 ,孤立的异常点不是我国宏观经济时间序列的主要特征 ;几乎所有的原始序列都有显著的偏度 ,过多的峰度也是明显的 ,因此它们被显著地拒绝认为服从正态分布 ;大部分变量的原始序列和异常点修正后序列虽然都呈现出非ARCH特征 ,但是ARCH2、ARCH4、ARCH8的P值却有一定程度的不同。     

加入WTO后科技型中小企业技术创新战略调整

随着中国加入WTO，科技型中小企业直接面临国外企业的竞争和挑战，国家对技术创新的支持政策也受到WTO相关规则的冲击。本文从加入WTO后我国科技型中小企业创新环境的变化，在分析我国科技中小企业的发展现状和技术创新优劣比较的基础,上根据WTO相关规则和现状，提出我国科技型中小企业入世后技术创新战略调整的应对之策略。     

Double Moral Hazard,Monitoring, and the Nature of Contracts

generalized double-sided moral-hazard model, with risk-averse parties who mutually monitor each other (to get a reasonable idea of outcome/effort). The model considers trade-off between monitoring costs and moral hazard costs, which are endogenously determined by the extent of monitoring. Using this model, we formally prove a generalized version of Coase's conjecture – that the optimal contract minimizes the agency and risk costs. We then show how varying assumptions about the feasibility or cost of monitoring of the outcome or the worker's effort lead to different contracts being optimal. The analysis is then used to explain the nature of contracts observed in practice under many different situations. We will give an explanation as to why industrial workers typically work under wage contracts, while share contracts are common in agriculture and will explain why profit sharing is more common for senior managers than for the production workers. Received September 19, 2000; revised version received October 30, 1997     

企业高技能型人才培养机制构建新探

随着科学技术的高速发展,我国工业企业高技能型人才出现了严重的短缺现象,应引起有关部门及企业界人士的高度重视.培养大批高级专业技术人才与高级技工人才有利于增强企业的竞争能力,应针对高技能型人才的目前状况,确定相应的培养途径和措施.     

Ex-post full surplus extraction,straightforwardly

Consider an estimate of the common value of an auctioned asset that is symmetric in the bidders’ types. Such an estimate can be represented solely in terms of the order statistics of those types. This representation forms the basis for a pricing rule yielding truthful bidding as an equilibrium, whether bidders’ types are affiliated or independent. We highlight the link between the estimator and full surplus extraction, providing a necessary and sufficient condition for ex-post full surplus extraction, including the possibility of independent types. The results offer sharp insights into the strengths and limits of simple auctions by identifying the source of informational rents in such environments. Harstad acknowledges hospitable accommodation by the Fuqua School of Business, Duke University, and the Olin School of Business, Washington University in St. Louis, during parts of this research. We are grateful for comments and suggestions from Richard McLean and Jeroen Swinkels.     

中国居民物质性消费与收入关系及其空间特征

对1993年起中国开始步入过剩经济时代进行了实证分析，给出了沿海与内地城镇及农村居民物质性消费与收入的恩格尔函数及其特征；在收入－消费关系空间特征分析的基础上，指出居民消费倾向内地高于沿海，内地城镇高于农村。最后从居民物质性消费与收入关系及空间特征角度讨论了现阶段加速中西部地区发展的必要性与合理性。