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71.
This paper uses a spatial model to analyse first‐ and second‐best policies, impacts of privatization and vertical disintegration of a congestible highway with elastic demand. The paper also uses simulation methods to analyse the welfare cost of a uniform‐toll constraint. Results show, inter alia, that the social optimum requires the marginal cost of highway extension to be equal to the net consumer benefit at the boundary, while in the second‐best case the aggregate user cost must be measured in terms of the shadow price. In turn, a profit‐maximizing firm equates the marginal extension cost to the markup revenue at the boundary.  相似文献   
72.
Housing tenure choice has been the subject of a very large literature. Many treatments have sought to estimate the effect of household income on the likelihood of home ownership. To date, no study has ever disaggregated the household income of married couples into the separate labor income components to see if one partner’s income has a different effect than the other. Using a derived likelihood function to control for censoring in the wife’s income, this paper estimates the effect of separate incomes on housing tenure choice, accounting for possible endogeneity of the wife’s income. To compare the results of this estimation method, the paper also estimates the standard IV models, 2SLS and IV probit. While the results show that there is no endogeneity of the wife’s income, ignoring the censoring of the endogenous variable (when a large fraction of observations are censored) can possibly lead to biased coefficient estimates. Also, this paper confirms the importance of total household income, which has a larger effect than the total disaggregated components.  相似文献   
73.
Based on a relationship between price difference and demand difference among locations, the role of various market frictions in causing segmentation of the Russian goods market is analysed. The spatial sample covers most of Russian regions (70 of the 89); the data are annual, spanning 1992 to 2000. Spatial disconnectedness of regions is found to be responsible for about 70 percent of the average price differential, while the rest is caused by ‘artificial’ impediments to market integration such as regional protectionism, organized crime and intra‐region shipping conditions.  相似文献   
74.
在扩展古诺竞争模型的基础上,通过比较不同技术提升策略对我国大飞机厂商收益的影响,考察了发展大飞机产业自主研发与技术引进的选择问题。研究结果表明,在单一机型竞争市场上,若自主研发的成功概率很大,则国内厂商在未来两期的最优技术提升策略是自主创新;在两种机型竞争市场上,若自主研发的成功概率很大,则国内厂商在未来两期的最优技术提升策略是第一期技术引进、第二期自主研发。  相似文献   
75.
This paper analyses the possibilities for implementing a TOD model around a railway station in Mianyang City, in southwestern China, through a Node-Place model to determine the potential for developing the areas around railway stations to foster a sustainable economic and urban development. For this purpose, the implementation of a TOD model means an interesting sustainable way for smart growth, whose successful implementation will strongly depend on the context, where the Growth Pole Theory is being implemented through the Western Development Strategy to strengthen the Chengdu-Chongqing Economic Zone. The Hukou system (household registration) and the current rapid urbanization and motorization trends are featuring the economic growth, creating inequities among urban population, informal settlements and problems in the accessibility of low-income residents. Therefore, not only does it lead to an analysis of the most important station areas in northeastern Sichuan Province but also of the socio-economic trends of one of the most underdeveloped regions of the country, yet with a high potential to be developed. Consequently, the real situation of the Northeast of Sichuan province is studied through fieldworks which complement the lack of reliable information, determining the most suitable features for achieving the best urban planning solution.  相似文献   
76.
Since the 1970s, several Southeast Queensland coastal towns in areas marketed as the ‘Gold Coast’ and the ‘Sunshine Coast’ have merged with each other and joined with Brisbane to become one of the world's longest urban coastal strips. The population of this 200 km long city is fast approaching three million. This urban pattern reflects the preferences of many Australians about where and in what type of housing they would like to live. The unplanned nature of this growth raises several policy challenges relating to resource use and traffic congestion.  相似文献   
77.
In conventional social productive efficiency measurements that consider the production of undesirable outputs such as CO2, a DEA-based non-parametric method of production possibility frontier (PPF) identification coupled with the directional distance-function approach a-la Luenberger (1992) is typically employed. This paper shows that the discrepancy between parametric and non-parametric methods of PPF identification in social inefficiency measures can be non-negligibly large when the number of observations is small or the data are not well-scattered. By using the same data as Ha et al. (2011), who used non-parametric PPF identification to measure the social efficiency of Japan's inter-city transport services with lifecycle CO2 as the undesirable output, this paper demonstrates that adopting parametric PPF identification instead can result in considerably higher inefficiency measures for decision making units (DMUs) with relatively large undesirable outputs.  相似文献   
78.
皮圣雷 《全国商情》2009,(22):35-37,48
本文在对4P、4C、4R相关研究成果进行述评和对供应链管理模式下4R营销理论进行深入探讨的基础上,对4P和4C理论的具体内容进行了修改以符合未来供应链的管理模式。以输入输出方法分析了三个理论具体内容之间的关系并提出了4RCP综合营销模型。该模型中4R是营销战略,4C和4P分别是顾客的需求分析和营销行动方案制定的战术模型,三者是互相融合的综合关系。4RCP综合营销模型在应用中是循环递进的,包括RCP的大循环和CP小循环,一次RCP大循环包括数个CP小循环。该模型适用于从营销战略到战术规划的转换,贯通营销活动从市场分析到具体营销行动的全过程。  相似文献   
79.
Innovation is generally recognized as a major source of economic growth. R&D investments explicitly aim at generating innovations and creating knowledge. Since knowledge has certain public good properties, positive externalities are likely to exist. In this paper, we extend well-known concepts from the input-output literature (backward multipliers) to indicate at which commodities stimuli should be targeted to enhance R&D and its positive externalities in the economy as a whole. Next, we argue that there may also be negative externalities of R&D, due to increased prices. This issue can be studied by means of forward multipliers. Both concepts are applied to the United States, 1977-90.  相似文献   
80.
This article investigates the issue of whether M1 or the monetary base should be used as an intermediate target for monetary policy. Because the target variable should be reliably related to future economic activity, each aggregate is used in estimating a small macromodel which consists of a nominal GNP growth equation and an inflation specification. The empirical results indicate that M1 better explains GNP growth and inflation for the period 1960–1980. Forecast errors of GNP growth from 1970–1980 are reduced when M1 is used instead of the adjusted base, although there is little difference between inflation forecasts. Based on the evidence presented in this study, M1 is preferred as the intermediate target variable.  相似文献   
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