基于弹性模型的市场势力研究——以锰矿石为研究对象

锰矿石是工业产业重要的基础性大宗原料矿产。对锰矿石的需求量也不断扩大,国内锰矿石的产量越来越不能满足需求。目前少数国家主导了国际市场定价权,如何把握锰矿石在国际市场上的定价权对中国具有重要意义。在RDE模型的基础上,对市场势力的测度模型做了进一步的拓展,并对中国和澳大利亚的锰矿石的贸易进行了实证分析,研究发现,剩余供给弹性和剩余需求弹性是影响市场势力的核心因素。     

论人力资本会计的困惑与出路

文章剖析了人力资本会计存在的固感,并就存在的问题提出了解决的思路。即建立人力资本成本会计与人力资本产权会计来构建完整的人力资本会计,通过人力资本会计来提供人力资本成本和当期人力资本价值的信息,为人力资本管理服务。     

扩频测控中窄带干扰抑制算法分析

本文简要介绍了扩频测控的原理、特点，分析了系统将面临的各种干扰形式及应采取的措施，其中重点分析了对系统危害最大且较易产生的窄带干扰所应采取的抗干扰措施。最后，通过仿真验证了算法的正确性。     

The residual market factor,the APT,and mean-variance efficiency

The rapidly increasing volume of both published and unpublished work on the arbitrage pricing theory (APT) of Ross (1976) has given rise to a number of misunderstandings at the interface of theoretical and econometric work. In this article we extend the theoretical structure of our previous work (McElroy and Burmeister, 1985, 1988; Burmeister and McElroy, 1987, 1988) to provide a broad yet rigorous framework both for econometric estimation and for better economic interpretation of new empirical results. We begin with the case where allK factors are observed, and then present the second case ofK−1≡J observed APT factors and one unobserved factor, theresidual market factor introduced in McElroy and Burmeister (1985). The economic interpretations for equivalent specifications of this model are discussed, and we enumerate several immediate payoffs to these specifications. The main new results are concerned with the sometimes intricate relationships among APT models withK factors and APT models withK factors that are constrained to satisfy mean-variance efficiency restrictions. These results are not only of theoretical interest, but more importantly they provide the basis for econometric estimation and testing of nested hypotheses. These econometric issues are discussed in detail.     

农村剩余劳动力跨省迁移的实证分析

本文将农民作为市场经济的理性主体,利用第五次人口普查的数据,使用线性化的logit模型,对影响农村劳动力跨省迁移的概率和流向等因素进行实证分析。结果表明,迁出地的人均耕地、劳动者受教育状况、农业劳动生产率、城镇居民收入以及两地距离等对农村劳动力的跨省迁移具有显著影响。     

时变步长自适应均衡算法的设计与仿真

研究了自适应均衡算法中步长因子对算法性能的影响。步长因子大,算法收敛速度和跟踪速度快,但收敛后稳态剩余误差大;步长小,算法收敛速度和跟踪速度慢,收敛后稳态剩余误差小。因此,采用固定步长时,算法在收敛速度和收敛精度方面对步长的要求是相互矛盾的。因此本文采用均方误差的Sigmoid函数和误差信号的非线性函数作为步长控制因子,得到了几种改进算法,经计算机仿真表明,改进算法收敛速度加快,稳态剩余误差减小。     

完善我国公司治理和财务治理模式的思考

随着国有企业改革的深化,人们越来越认识到公司治理和财务治理模式不完善是国有企业存在的深层次矛盾,是阻碍国有企业改革的关键所在,因此必须尽快完善我国国有企业公司治理和财务治理模式,才能使其适应市场的变化和竞争的要求。     

试论企业经营者人力资本激励与约束

本文从企业经营者人力资本的一般特征入手,进一步延伸分析了企业经营者人力资本的产权特征,在此基础上论述了企业经营者激励与约束的制度选择,即赋予企业经营者剩余控制权和部分剩余索取权。     

Teams, Firms and the Evolution of Profit Seeking Behavior

Even as advances in information theory over the last quarter century have cast increasing doubt on the proposition that firms successfully maximize profits, the objective of profit maximization continues to be an axiomatic feature of the neoclassical theory of the firm. This paper attempts to improve our understanding firms by treating the objective function as an open question. Specifically, an ontogenetic thought experiment is undertaken to address the question of what differentiates production teams from firms by asking why team members would sell their control rights to a principal, thereby transforming the team into a firm. What results is an account of the emergence of the objective of profit seeking. Profit seeking emerges endogenously as a more fit alternative than the objective of value maximization, which is less capable of coping with uncertainty through purposive adaptation.