我国寿险公司范围经济效应的实证研究

我国自1996年实施产寿分业经营以来,人身保险业务快速增长,寿险公司数量急剧增加,寿险公司业务中新型寿险的比重不断上升,呈现出"一险独大"的市场状况。运用超越对数成本函数,对国内29家具有代表性的寿险公司2005-2010年期间的范围经济状况进行检验的结果显示:不同规模和背景的寿险公司的范围经济系数均比较明显,但是很多寿险公司所表现出来的范围经济性具有"欺骗性"。因此,寿险业务结构调整缺乏内部的市场激励,需要强有力的外部力量推动。     

皖江城市带城市经济联系与中心城市辐射范围分析

分析经济区内城市间经济联系不仅有利于引导城市的空间发展,而且有利于空间经济的合理组织。以皖江城市带为例,引入克鲁格曼指数、建成区面积、人口素质权重系数等指标修正了以往的引力模型,并利用城市间的日发车班次数据对修正模型进行了检验。在此基础上,利用修正模型确定了各城市的主要对外联系方向及联系强度,采用断裂点公式计算了中心城市的吸引范围。结果表明:①皖江城市带内各城市对外经济联系强度差异较大;②各城市的主要联系方向呈现中心城市指向性和地域相邻指向性特征;③合肥和芜湖为皖江城市带的两个经济中心城市,它们的对外吸引范围较为狭小。     

论民法中诉讼时效制度适用范围

在日常生活中,任何人都无法离开法律而生活,因为法律是与生活息息相关的。正如西方法律谚语所说:立法者不是创设法律,而是发现法律。生活离不开法律,法律来自于生活。生活里人们无时不刻地在为自己和他人创设权利与设置义务,从而生成各种民事法律关系。但是,权利与义务不会无休无止地存在,当一方信守承诺积极履行自己的义务时,另一方亦不能躺在权利的床上酣眠。不论是权利还是义务,都会有消亡的时刻,即一个时间限制,法律中叫做时效。为此,对中国公民哪些权利会受到时效的限制及该受多长时间的限制进行了论述。     

征地补偿标准存在的问题及相应对策

现代化进程使大量农民处于失地境地,确立对失地农民合理的补偿标准,成为凾待解决的问题。本文对现有土地征用补偿标准存在的问题进行分析;结合新近出台的《物权法》,提出以市场调整为基础,扩大征地补偿项目,明晰公共利益的内涵,综合考虑区位级差及地租土地补偿金和土地拆分价值;提出规定土地征用法律程序,制定土地征用相关司法解释,建立专门的争议解决机构。     

社会主义和谐社会经济制度基础的研究视域

社会主义和谐社会的经济制度基础研究是一门着眼于改革开放以来经济领域中思想解放的宏观历史进程,以深入研究经济变革中的一般经济制度、经济体制、基本经济制度以及经济发展观为理论重点,以彰显社会主义和谐社会的经济制度创新优势和实现人的全面而自由发展为实践目标的学问。     

商业银行定义与商业银行法的适用范围

对英国、美国及我国香港和台湾银行定义以及银行法适用范围进行了研究。分析了我国《商业银行法》约定义并建议在坚持形式认定主义的同时，修正该法第87条，对一些关键性的概念如存款、贷款加以明确界定。     

Racing in two dimensions

In this paper we study an industry in which there is an ongoing sequence of R&D races between two firms. Firms are engaged in product innovation. Products are horizontally and vertically differentiated. There are two key characteristics/dimensions to products, and the level at which these are embodied in products can be increased by R&D. At each time firms can spend R&D on improving their product in one or both dimensions. We allow the possibility of economies scope — so R&D undertaken in one dimension can spillover to the other. The question we are interested in is whether a firm that is ahead in a single dimension but behind in another will focus all its R&D effort in the area in which it is ahead (product specialisation), or whether it will try to do R&D in both dimensions in the hope that it might get ahead in both and end up with a superproduct that dominates in both characteristics. The outcome of this R&D competition determines a Markov transition probability matrix determining the evolution of the industry. We show that when the R&D technology is characterized by constant returns then the only steady-state outcome is one in which the economy stays forever in a position in which one firm produces a super-product and the other gives up doing R&D altogether. This outcome is unaffected by the degree of economies of scope. When the R&D technology is characterised by decreasing returns, then the industry will visit all states and so will exhibit both product specialisation and superproduct dominance at various times. Now the extent of economies of scope matters and we show that the greater the extent of economies of scope, the less likely is the industry to exhibit product dominance, and the more likely it is to exhibit product specialisation.     

教育市场化范畴与市场化方法的探讨

要促使我国教育市场化规范有序的发展就一定要明确教育市场化并非所有的教育都要市场化,而是将政府不从事的那部分教育市场化,并且要加强对教育市场的培育与监管,还要拓展教育市场化方法的创新,才能提高教育市场化的声誉,降低教育市场化成本,促使教育市场规范有序地向纵深发展.     

我国增值税扩围改革研究文献述评

分税制改革后,我国形成了增值税和营业税并存的局面,分别在中央和地方财政收入中占据主要地位,这对市场经济的运行造成了一定的扭曲,不利于经济结构的转型,因此增值税扩围改革势在必行。增值税扩围意味着营业税最终被取消,建立这样一个新体制对既有利益分配格局的冲击是显而易见的,在这一改革中如何兼顾各方面的利益将是增值税扩围改革能否取得成功的关键。本文主要对近年来国内学者关于增值税扩围及其相关问题的研究成果进行梳理,以期能为改革实践和有关研究提供参考。     

Technical and scale efficiencies of meat goat farms in the USA

This study determines i) scale and technical efficiencies, ii) marginal productive contributions for inputs and outputs and iii) efficiency drivers of meat goat farms in the USA. We estimate an input distance function (IDF) using a stochastic production frontier (SPF) technique. The average technical efficiency (TE) for the USA meat goat whole farm was 0.74. The operator education level, percentage of annual net farm income from the goat operation, regional differences and holding of an off farm job are the efficiency drivers of USA meat goat farms. We find increasing returns to scale (RTS) for USA meat goat farms. Our results suggest that USA meat goat farms can be scale efficient if their optimal size of operation is greater than approximately 64 goats or greater than 40 breeding does. Empirical Monte Carlo (MC) simulation techniques show the consistency of finite-sample properties for the input distance function.