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131.
We consider the effects of demographic and expenditure variables on consumer demand in a system of Engel curves using a smooth
coefficient semiparametric model where the expenditure effects on the budget shares vary nonparametrically with demographic
variables such as the age of head and number of children in the household. Our findings, based on UK micro data, suggest that
with a smooth coefficient semiparametric model there is no need for nonlinear logarithmic expenditure effects in the budget
shares. Furthermore, we find evidence of a trade-off between demographic and expenditure effects in Engel curves and that
a rank-2 system of Engel curves where the logarithmic expenditure effects are allowed to vary with demographic characteristics
either nonparametrically or as a third degree polynomial function cannot be rejected against a rank-3 (quadratic logarithmic)
model. The implications on household behavior and welfare are also examined.
We would like to thank an anonymous referee and Baldev Raj, the editor, for useful comments and suggestions. We would also
like to thank the University of Cyprus for financial support, Theofanis Mamuneas for stimulating discussions and the Office
of National Statistics for making available the UK Family Expenditure Survey data through the ESRC Data Archive. The last
author would also like to acknowledge the financial support from SSHRC of Canada. 相似文献
132.
关于前景理论的理论综述 总被引:1,自引:0,他引:1
卡尼曼( Kahneman )与特沃斯基( Tversky )对行为经济学进行了广泛而系统的研究后所提出的前景理论,冲击了预期效用理论,从动态的角度和行为者的风险偏好行为做了具体深入的研究,并强调微观层次上的决策者和环境之间的互动,较好的解释了认知偏见如何影响决策者对信息的处理,进而影响其决策的行为。 相似文献
133.
当前我国的税、费制度与加强生态环境保护工作的现实需求存在着较大的差距。税制上突出表现在税种的安排、税率的设计,税收优惠的实施等方面;排污收费制度表现为征收标准偏低、征收管理不到位、缺乏激励企业治污积极性的作用等方面。为此,应针对现行税、费制度中不利于生态环境保护的方面进行调整和完善。 相似文献
134.
谈我国如何运用普惠制原产地规则 总被引:3,自引:1,他引:3
原产地规则是衡量受惠国出口产品是否取得原产地资格、能否享受优惠的标准。其目的是确保发展中国家或地区的产品利用普惠制扩大出口,防止非受惠国的产品利用普惠制的优惠扰乱普惠制下的贸易秩序。我国应深入研究并灵活运用普惠制原产地规则,按照该标准调整产业结构,扩大出口产品的国产化程度,有效地保护国内市场。 相似文献
135.
136.
随着开放式基金品种的增加和基金公司规模的壮大,证券投资基金市场的竞争日趋激烈。为了实现经营目标,投资基金公司可以考虑通过合理的产品线设计,提升产品对基金投资者的吸引力。本文借助于产品线理论及设计方法,提出基金产品线选择的概念;通过收集目标投资者的偏好信息,建立一个基于投资者偏好的基金产品线选择模型;利用所建立的模型并结合混合联合分析法,给出基金产品线选择的一个实例。 相似文献
137.
In the first part of the paper, we study concepts of supremum and maximum as subsets of a topological space X endowed by preference relations. Several rather general existence theorems are obtained for the case where the preferences are defined by countable semicontinuous multi-utility representations. In the second part of the paper, we consider partial orders and preference relations “lifted” from a metric separable space X endowed by a random preference relation to the space L0(X) of X-valued random variables. We provide an example of application of the notion of essential maximum to the problem of the minimal portfolio super-replicating an American-type contingent claim under transaction costs. 相似文献
138.
我国基金重仓股选股偏好的时期似无关回归分析 总被引:1,自引:0,他引:1
基于基金重仓股季度面板数据,本文采用时期似无关回归模型分析了四大类共28个指标对基金持股比例的影响,并利用基金重仓股的统计值特点发现基金筛选股票的标准。研究结果表明,基金确实在寻求价值型投资,扩大基金规模可减轻股市投机行为;基金在调研阶段和操盘阶段对风险有不同的偏好,调研阶段规避风险,操盘阶段偏好高风险高回报;基金偏爱长期流动性好的股票;开放式基金的选股要求高于封闭式基金,牛市时基金的选股要求高于熊市;基金偏爱关注率高、信息丰富的股票;基金对行业的偏好基于行业的业绩表现;基金重仓股持股比例基本上与指数有相似的变化趋势。 相似文献
139.
论文针对客户理财产品选择的偏好进行研究。为深入分析客户的理财行为,采用叙述性偏好法(Stated Preference)进行问卷设计,同时运用多项罗吉特(Multinomial logit)及巢式罗吉特(Nested logit)计量模型建立消费者理财偏好选择模式,并以湖南地区为例,分析该地区客户对于理财商品的偏好,并研究客户群体的理财产品选择行为模式,以期为银行的理财产品开发和监管部门的管理提供一定参考。 相似文献
140.
AbstractRisk is a subjective notion allowing the boundaries between the role of a risk practitioner and a decision-maker to become blurred. A belief that the public misunderstands risk and the need to control the risk assessment process are two barriers to effective engagement. A lack of engagement and the ability to enable citizens to decide their own future can contribute to the controversy we see in important public debates. In our study, we surveyed four stakeholder groups in the New Zealand to determine how they each rated the risks and benefits of a case study on the three biophysical impacts of the economy, environment and human health. Our survey methodology incorporated a continuous scale along three axes and this design enabled costs and benefits to be traded-off between individuals, giving them a representative voice. We used these results to investigate whether or not it would be feasible to use such an approach to make decisions. Our results indicate that public decision-making is possible, which in this case broadly reflected agreement between the public and the official decision. Such an approach holds promise for expanding the role of public engagement and input into the risk assessment process. 相似文献