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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.
Is the spatial concentration of manufacturing activity able to enhance firm-level productivity? This question is particularly relevant to production in China, which has a huge territory and population, but a skewed distribution in terms of urban–rural development. This paper aims to examine the dynamics of industrial agglomeration and the impact of agglomeration on firm-level productivity in China's textile industry by using a firm-level panel dataset from 2000 to 2005. First, the average value of the Ellison–Glaeser (EG) index (city level) is found to be approximately 0.00019. Moreover, the calculated city EG index of spatial concentration for each year exhibits a decreasing trend of spatial agglomeration for garments and other fiber products, but an increasing trend for the textile industries' agglomeration in China. The above findings are similar to the findings of Lu and Tao (2009). Secondly and importantly, this study finds an inverted U-shape relationship between agglomeration and productivity. It suggests that while industrial agglomeration enhances firms' productivity, agglomeration diseconomies may appear if the degree of agglomeration is too high.  相似文献   
74.
研究与开发(以下简称R&D)支出是企业获得超额利润的一个重要源泉,研究R&D支出与企业的关系显得非常重要。R&D支出是指企业R&D投入强度。本文主要区分国内外研究现状,从R&D支出对企业价值、企业业绩、企业风险及成长性等方面的影响角度进行综述。本文梳理了相关研究的脉络,力求为学者们的后续研究提供便利。  相似文献   
75.
现代旅游业的国际化需要大批具有丰富行业管理经验的应用型、外向型人才.美国教育专家多尔的建构性4R理论为解决我国高等旅游教育课程设置中存在的问题提供了理论依据.在分析4R理论的基础上,对10多个国家及地区旅游专业硕士课程进行比较研究,并以西安外国语大学为例,结合其办学特色,从国际化、应用性、职业化人才培养视角,探索旅游管理专业硕士课程建设问题,以期使课程结构体系及内容符合市场要求.并随着旅游教育目标群体及教育者群体多样化拓宽,使高等旅游教育大众化走向完善,实现就业意义上的“供给创造需求”。  相似文献   
76.
In this paper, we analyze housing‐market reactions to the release of previously unpublished information on school quality. Using high‐quality housing data, which precisely bracket the timing of the information shock, we investigate housing‐price dynamics within school‐catchment areas. We find a robust short‐term housing‐market reaction to the publication of school‐quality indicators, suggesting that this information was new to the households, and that households are willing to pay for better schools. The publication effect does not seem to be permanent as prices revert to pre‐publication levels after two to three months.  相似文献   
77.
In this paper, we analyse the association between the spatial concentration of ethnic minorities and racial harassment. Ethnic concentration relates to racial harassment through at least three channels: hostility in the attitudes of majority individuals that finds expression in harassment behaviour, the probability that minority individuals meet majority individuals, and the cost of expressing hostility aggressively. Thus, harassment cannot simply be modelled as a stronger form of hostility. Using unique data for Britain, we show that, in areas of higher local ethnic concentration, experience of harassment is lower, even though hostility on the side of the majority population is not.  相似文献   
78.
徐自彬 《价值工程》2011,30(26):98-98
本文我们研究了正式的研发投资的频率。用实物期权和基于知识的观点去解释一个公司的知识资源是怎么影响该公司用于确定技术选择的研发投资频率。详细的说,我们得出一个公司若没有内部知识资源,很可能就总不投资研发;若有内外部知识资源,公司有时投资研发;但有内部知识资源而没有外部知识资源时,公司很可能总是投资研发。  相似文献   
79.
We propose a consumption model that captures the impact that perceived price ambiguities may have upon decision‐making in green markets in general and in active transportation markets in particular. The basic intuition for the model is that a consumer who may be misperceiving the price of the green good (the active transportation mode) would be willing to pay a positive amount from her income in the current period to resolve the misperception going forward. We posit that the basis for the price misperception in the active transportation context is misperception of the relative risks involved in taking that mode. The compensating variation that aligns perceived and objective risk is derived. We show how raising green consumption via price misperception correction can be superior to traditional economic policy instruments. The results shed light on the more general family of situations in which agents may consistently misperceive aspects of the decision environment.  相似文献   
80.
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   
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