风网互补技术在丛式井组的应用探讨

介绍了长庆油田地区风能资源测试、统计和分析的方法,得出了长庆油田基本位于风能可利用区的结论;针对长庆油田现状,提出了分布式风网互补供电系统在油田丛式井组上应用的方案;并对风力发电进行了效果测试分析。     

有选择地提高联合双原子高次谐波发射效率的一种方法

利用经典的SMT理论分析了一维普薛耳-特勒势（PT势）模型原子在激光场作用下的动力学行为，优化了联合双原子模型；并用特殊设计的双色激光场辐照该模型，采用Crank—Nicholson方法求解其原子的含时Schroedinger方程，得到了它的高次谐波发射谱．该谱表明，可以将截止位置为Ip＋8Up的高谐波发射效率提高到10^-9．     

公共产品：边界迷局及其破解

萨缪尔森对公共产品的定义使公共产品的理论走向科学化，但过分的概念科学化使其陷入自己设定的边界迷局而不能自拔。阿特金森和斯蒂格利茨、布坎南、巴泽尔及蒂布特的公共产品理论及对公共产品进行边界划分的依据依然存在缺陷，无法真正走出公共产品的边界迷局。只有从公民生存发展的需求程度、市场的满足程度和资源的支持程度这些最根本的问题来寻找公共产品边界划分的依据。才能真正解决公共产品的边界迷局。影响公共产品边界生成的变量主要有：与人民生命、财产的相关程度及危险危害程度；市场供给的难度和成本；资源稀缺程度。     

价格扭曲与边际产出孰轻孰重？ ——建设用地资源错配的来源分解

研究目的:探究中国城市建设用地资源错配的产生机理并对其来源进行分解,为纠正城市建设用地资源错配提供参考。研究方法:基于Cobb-Douglas生产函数,采用定量分析与定性分析相结合的方法,并尝试对HSIEHKLENOW的资源错配模型进行拓展。研究结果:考察期内工业、住宅用地存在过量配置,而商服用地则配置不足,且造成三类建设用地资源错配的主要来源不尽相同。研究结论:短期内纠正存量建设用地在不同行业间的资源错配已成为土地资源约束下提高经济产出的最佳选择。     

农民工就业市场的经济学分析

中国城市劳动力市场分为首属劳动力市场和次属劳动力市场,由于多种原因,农民工不可避免地成为次属、非正规劳动力市场的主体,而且这种现象将长期存在。对劳动力市场各个不同主体和交易环节进行分析,认为看似不合理的经济行为却是各自在其约束条件下的理性选择,因此,在我国建立统一、全面的劳动力市场不是一蹴而就的,而是一个循序渐进的过程,需要对农民工群体因势利导。次属的、非正规劳动力市场虽然存在种种不规范行为,但未来长期的一段时间依然是正规劳动力市场的有益补充。     

Differential multipliers

A modified version of the Archer tourism multiplier model is used to derive differential multipliers, at both the sectoral and firm scale, for the Cook Islands tourist industry and ancillary sectors. Firm level analysis is shown to be necessary if factors of industrial organization, such as size and ownership characteristics, are not to be overlooked. The results reveal that smaller, locally owned establishments generate more local income, employment, and gross government revenue than their larger, overseas controlled counterparts. The model is shown to be a highly suitable surrogate for conventional input-output models, which, due to factors such as cost and lack of data, cannot always be used in small nations or regions to develop a data base suitable for the planning of tourist development.     

发电企业竞争力来源和评价模型

电力体制改革第一阶段实施“厂网分开”,在发电侧引入竞争,发电企业之间的竞争已经展开并将趋于激烈。本文通过独创的理论分析,将发电企业综合竞争力分解为外部环境竞争力、资源基础竞争力、经营过程竞争力和业绩表现竞争力四个环节,以更好地理解和认识当前我国发电企业竞争力的来源和结构。同时构建了一套适合当前我国发电企业的竞争力评价模型,并利用上市发电企业2003年数据进行试评价,取得了较好的效果。     

I can do that alone…or not? How idea generators juggle between the pros and cons of teamwork

Research summary: The advantages of working with a team to develop an idea are well established, but surprisingly, little is known about why some idea generators ignore these advantages by developing their ideas alone. To answer this question, we study two important trade‐offs. First, working with a team provides access to additional resources but also leads to increased coordination costs. Second, sharing the risks and costs of developing an idea necessitates sharing the potential rewards of a successful idea. We use unique data on idea generators and their submission of ideas to an innovation program in a large European company between 1996 and 2008 to show how the two different trade‐offs affect the decision of idea generators to collaborate with a team. Managerial summary: Organizations usually form teams to develop and execute innovative ideas. When people have the choice, however, will they also form a team or will they develop ideas alone? By studying idea generators and their voluntary submissions of breakthrough ideas to an innovation program, we find that the success rate is much higher for team ideas. Although teamwork has important benefits, idea generators will often develop incremental ideas alone and only accept increased coordination costs for developing radical ideas—this is even more so when they have prior team experiences. Moreover, only when idea generators were successful before and—even more so—when they developed that idea alone, will they be more open to sharing the rewards and risks of developing another idea with a team.     

世代效应:民营企业家群体的阶层地位变迁研究

阶层地位感知是影响民营企业家经营决策的重要因素,然而当前仍缺乏对其阶层地位感知形成机制的解释。从市场化转型历史背景出发,本文认为民营企业家阶层地位感知受其创业时特定历史情境的影响,并会通过世代效应长期共享、强化这一认知模式。基于五次中国私营企业抽样调查数据,具体考察1992年前后两个不同时期创业的民营企业家群体地位感知差异来检验世代效应。结果表明:与市场经济体制确立之前(1992年前)创业的民营企业家群体相比,市场经济体制确立之后(1992年后)创业的民营企业家群体地位感知相对较高。同时,进一步异质性检验发现,对于无体制内经历和经济力量较强的民营企业家群体,市场化转型对其阶层地位感知的提升作用更强。通过聚焦于中国市场化转型的历史变迁进程,本文为深化民营企业家阶层地位感知的认识提供了宏观历史视角解释。     

农民工消费的习惯形成效应及代际差异研究——采用CHIPS、CLDS和CGSS微观调查数据的组群分析

改革开放以来,大量农民工涌入城市工作和生活,其消费行为一方面受过去农村生活习惯的影响,另一方面又受到城镇居民消费模式的影响。采用2002—2015年CHIPS、CLDS和CGSS微观调查的混合数据,利用组群方法构建“伪面板”进行系统GMM估计,结果显示：农民工家庭消费存在对即期收入的过度敏感性;由于消费习惯处于从农村居民消费模式向城镇居民消费模式的转型中,农民工家庭消费没有显著的内部习惯形成效应,但存在显著的外部习惯形成效应;相较于老一代农民工,新生代农民工家庭消费受到城镇居民消费模式示范效应的影响更大,表现出更强的外部习惯形成效应。应通过完善社会保障体系、提高农民工收入、提供住房保障和职业培训、引导新生代农民工消费、加快消费信贷市场发展等促进农民工消费习惯的城镇化转型。