全文获取类型
收费全文 | 5537篇 |
免费 | 176篇 |
国内免费 | 71篇 |
专业分类
财政金融 | 326篇 |
工业经济 | 220篇 |
计划管理 | 1931篇 |
经济学 | 995篇 |
综合类 | 578篇 |
运输经济 | 51篇 |
旅游经济 | 50篇 |
贸易经济 | 714篇 |
农业经济 | 415篇 |
经济概况 | 504篇 |
出版年
2024年 | 22篇 |
2023年 | 73篇 |
2022年 | 81篇 |
2021年 | 108篇 |
2020年 | 160篇 |
2019年 | 118篇 |
2018年 | 93篇 |
2017年 | 110篇 |
2016年 | 120篇 |
2015年 | 150篇 |
2014年 | 372篇 |
2013年 | 408篇 |
2012年 | 458篇 |
2011年 | 575篇 |
2010年 | 416篇 |
2009年 | 311篇 |
2008年 | 465篇 |
2007年 | 396篇 |
2006年 | 306篇 |
2005年 | 249篇 |
2004年 | 184篇 |
2003年 | 159篇 |
2002年 | 93篇 |
2001年 | 74篇 |
2000年 | 61篇 |
1999年 | 41篇 |
1998年 | 30篇 |
1997年 | 26篇 |
1996年 | 16篇 |
1995年 | 16篇 |
1994年 | 8篇 |
1993年 | 12篇 |
1992年 | 7篇 |
1991年 | 8篇 |
1990年 | 6篇 |
1989年 | 6篇 |
1988年 | 5篇 |
1987年 | 6篇 |
1986年 | 8篇 |
1985年 | 5篇 |
1984年 | 7篇 |
1983年 | 6篇 |
1982年 | 7篇 |
1981年 | 1篇 |
1979年 | 1篇 |
排序方式: 共有5784条查询结果,搜索用时 15 毫秒
21.
一般理论认为,按生产要素分配主要体现在非公有制领域和公有制领域内劳动者收入来源的多样性上.但事实上,随着我国劳动力市场的发展和完善,按生产要素分配在公有制领域内将有更大的作用空间.其具体实现形式之一,即为公有制范围内劳动收入由V+Vm构成,而且对企业利润(M)中分配后的剩余部分,仍可实行按生产要素分配,而后者是建立国有资产保值增值机制的一种新思路. 相似文献
22.
Bayesian MCMC Mapping of Quantitative Trait Loci in a Half-sib Design: a Graphical Model Perspective
N.A. Sheehan B. Gulbrandtsen M.S. Lund D.A. Sorensen 《Revue internationale de statistique》2002,70(2):241-267
Graphical models provide a powerful and flexible approach to the analysis of complex problems in genetics. While task-specific software may be extremely efficient for any particular analysis, it is often difficult to adapt to new computational challenges. By viewing these genetic applications in a more general framework, many problems can be handled by essentially the same software. This is advantageous in an area where fast methodological development is essential. Once a method has been fully developed and tested, problem-specific software may then be required. The aim of this paper is to illustrate the potential use of a graphical model approach to genetic analyses by taking a very simple and well-understood problem by way of example. 相似文献
23.
Yang Yao* 《中国与世界经济(英文版)》2006,14(6):20-38
1. Introduction The village election was first envisioned by the late chairman of the National People’sCongress (NPC), Mr Peng Zhen, in the mid-1980s to enhance village governance after the commune system was dissolved in China in the early 1980s. In 1987, the NPC passed a tentative version of The Organic Law of the Village Committee (OLVC), and started a 10 year experiment of village elections. In 1998, the NPC formally passed the law and elections quickly spread to the whole count… 相似文献
24.
I model imperfect information, derive a downward sloping market demand curve, and explain vacancies in a partial equilibrium model of a rental housing market. Tenants can be completely described by an exogenous demand curve, perhaps arising from differences in income, preferred location, or tastes, and view vacant units based on a stochastic arrival of rental information. Free entry of these landlords induces excess rental housing capacity (equilibrium vacancies). I determine the equilibrium distribution of rents for vacant units, show that this rent distribution may be discontinuous, and explore the equilibrium vacancy rate to changes in exogenous parameters. The resulting characterization of equilibrium distributions of rents may be amenable to econometric modeling exploring the relationship between market rents and vacancies. 相似文献
25.
随着近年流通领域的发展,尤其是电子商务对现代物流的要求,物流配送需要现代化的信息技术已越来越成为人们的共识,如何对物流配送系统和配送中心进行现代化建设,已成为不少物流配送公司的重要课题。针对目前物流配送中“不可见部分”和过程无法控制的现状,论文设计了一个物流配送实时监管系统来满足物流配送企业和客户的需求。 相似文献
26.
27.
物流配送是一个涉及多种影响因素的综合性复杂问题。本文探讨了基于Agent(智能体技术)的物流配送决策支持系统设计,在该系统中的智能体模型中引入学习机制,初步建立了一个具有专家系统特点、可以不断进化的物流配送决策支持系统。 相似文献
28.
A new continuous distribution and two new families of distributions based on the exponential 总被引:1,自引:0,他引:1
Recent work on social status led to derivation of a new continuous distribution based on the exponential. The new variate, termed the ring(2)-exponential, in turn leads to derivation of two closely related new families of continuous distributions, the mirror-exponential and the ring-exponential. Both the standard exponential and the ring(2)-exponential are special cases of both the new families. In this paper, we first focus on the ring(2)-exponential, describing its derivation and examining its properties, and next introduce the two new families, describing their derivation and initiating exploration of their properties. The mirror-exponential arises naturally in the study of status; the ring-exponential arises from the mathematical structure of the ring(2)-exponential. Both have the potential for broad application in diverse contexts across science and engineering. Within sociobehavioral contexts, the new mirror-exponential may have application to the problem of approximating the form and inequality of the wage distribution. 相似文献
29.
物流配送系统中的运筹学问题及方法研究 总被引:1,自引:1,他引:1
物流配送系统中包含诸多运筹学问题,如配送中心选址中的0-1规划问题,货物配载中的背包问题,配送路线优化中的动态规划问题等,通过建立数学模型,利用运筹学方法与信息技术的结合可对上述问题加以解决,为配送业务的进一步发展提供帮助. 相似文献
30.
In this paper characterizations of negative multinomial distributions based on conditional distributions have been studied. 相似文献