首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   138899篇
  免费   3933篇
  国内免费   14篇
财政金融   26125篇
工业经济   11716篇
计划管理   22167篇
经济学   30105篇
综合类   1564篇
运输经济   991篇
旅游经济   2535篇
贸易经济   24018篇
农业经济   6291篇
经济概况   17075篇
信息产业经济   7篇
邮电经济   252篇
  2021年   876篇
  2020年   1662篇
  2019年   2446篇
  2018年   2363篇
  2017年   2577篇
  2016年   2763篇
  2015年   2152篇
  2014年   3472篇
  2013年   15571篇
  2012年   4303篇
  2011年   4262篇
  2010年   3837篇
  2009年   4435篇
  2008年   4073篇
  2007年   3415篇
  2006年   3717篇
  2005年   3718篇
  2004年   3222篇
  2003年   3011篇
  2002年   2952篇
  2001年   2681篇
  2000年   2606篇
  1999年   2472篇
  1998年   2362篇
  1997年   2391篇
  1996年   2238篇
  1995年   2037篇
  1994年   2049篇
  1993年   2003篇
  1992年   2064篇
  1991年   1970篇
  1990年   1857篇
  1989年   1704篇
  1988年   1626篇
  1987年   1624篇
  1986年   1708篇
  1985年   2522篇
  1984年   2367篇
  1983年   2174篇
  1982年   2026篇
  1981年   1957篇
  1980年   1917篇
  1979年   1867篇
  1978年   1647篇
  1977年   1643篇
  1976年   1401篇
  1975年   1290篇
  1974年   1198篇
  1973年   1197篇
  1972年   901篇
排序方式: 共有10000条查询结果,搜索用时 187 毫秒
211.
Neuroeconomics: Why Economics Needs Brains   总被引:7,自引:0,他引:7  
Neuroeconomics uses knowledge about brain mechanisms to inform economic theory. It opens up the “black box” of the brain, much as organizational economics opened up the theory of the firm. Neuroscientists use many tools—including brain imaging, behavior of patients with brain damage, animal behavior and recording single neuron activity. The key insight for economics is that the brain is composed of multiple systems which interact. Controlled systems (“executive function”) interrupt automatic ones. Brain evidence complicates standard assumptions about basic preference, to include homeostasis and other kinds of state‐dependence, and shows emotional activation in ambiguous choice and strategic interaction.  相似文献   
212.
Abstract.  This paper is concerned with the sustainability of free‐trade agreements (FTA). FTA sustainability is influenced by governments' valuations of political contributions, discount factors, the lobbying position of the specific‐interest groups in the intra‐industry trade sectors, and the sectoral coverage of the FTA. I find that (i) under certain conditions, the FTA under protectionist lobbying could be more sustainable than the FTA under no political pressure; (ii) the lobby‐supported FTA is more sustainable than the lobby‐opposed FTA and the FTA under no political pressure; and (iii) multisector trade enhances FTA sustainability. JEL Classification: F12, F13, F15.  相似文献   
213.
This paper demonstrates howadditional rents are generated in a fisherycharacterized by intraseasonal variation infish characteristics, including size,condition, and composition. Based on anexpanded conceptual model of the optimalharvest rule, fish characteristics affect preand post harvest production yields and outputprices. A dynamic empirical model, which uses asystem of quality characteristics and anhedonic equation, illustrates the complexrelationships and management choices associatedwith internalizing seafood qualitycharacteristics in a hake fishery. The modelretains the regulated open access managementsystem, but controls intertemporal andintersectoral quotas, production portfolios,and total allowable catch. Results demonstratethat including revenue-side effects frominternalizing fish quality can generatesignificantly greater rents and reduce therelative benefits of increased productionyields. If excluded, bioeconomic models canunderestimate the level of regulatory rentdissipation and overemphasize managementobjectives such as full utilization, whichcould misdirect processing decisions and resultin a suboptimal resource management plan.Implications for data collection,multidisciplinary analysis, and improvements inmarine resource management are discussed.  相似文献   
214.
215.
This article surveys recent research of the Spanish colonial era in the Philippines since the late eighteenth century. While highlighting imperfections in our understanding, the article establishes the parameters with which the Philippine economy entered the twentieth century. It outlines the intensification of Spanish colonial rule through changes in the taxation system, particularly the expansion of forced tobacco cultivation until its abolition in 1882. Since then, the Spanish set out to further change and intensify colonial rule but contradictions in the system of colonial rule caused the effort to come to an abrupt end in 1898.  相似文献   
216.
217.
文章根据新形势下经济管理类专业对计算机及相关技术的特殊要求,讨论了计算机相关课程的设置,提出了实验教学改革的想法,即如何构建和管理开放实验室。  相似文献   
218.
The paper highlights the main drivers for merger policy reform in the European Union, including the consequences of the recent appeal court reverses. It discusses some of the substantive and procedural issues that the reform package should address, and outlines the reforms in progress. The author concludes that much of the reform package will be beneficial, but some important opportunities have been missed in this inevitably patchwork process.  相似文献   
219.
The number of firms using alliances as part of their corporate venturing or market entry strategies has surged over the past decade. Three common reasons cited for pursuing alliances are technology convergence, market access and alliance partners' complementary resources. This paper contrasts the alliance strategies of HP and IBM, two major competitors in electronic services (i.e. Internet-based 'e- service') businesses, using the Familiarity Matrix as a display tool to portray the strategies. Whereas the HP strategy is to attempt to establish its technology infrastructure as the standard e-services infrastructure on the Internet, IBM aims to position its IBM Global Services, rather than its technology, at the center of this ecosystem.  相似文献   
220.
This paper investigates India's exceptional development pattern, specifically the major importance of information technology services (ITS), and compares it with China's development pattern. Both countries want to develop capabilities for carrying out the innovation of technologies that compete at the state-of-the-art in the world market. The paper posits that technological/economic success in the contemporary world market requires the ability to innovate complex technologies and complex technology-related services. The share of trade represented by complex technologies is compared with the “high-tech” share. The trading patterns of the two countries are compared using United Nations data. Two case studies of Indian ITS companies are then compared with two case studies of Chinese manufacturing companies. Historical and cultural differences appear to explain some of the differences in the development patterns of the companies located in the two countries.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号