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   9607篇
  免费   215篇
  国内免费   1篇
财政金融   1728篇
工业经济   799篇
计划管理   1675篇
经济学   2145篇
综合类   220篇
运输经济   43篇
旅游经济   134篇
贸易经济   1527篇
农业经济   395篇
经济概况   1126篇
信息产业经济   1篇
邮电经济   30篇
  2020年   109篇
  2019年   135篇
  2018年   181篇
  2017年   213篇
  2016年   191篇
  2015年   135篇
  2014年   188篇
  2013年   873篇
  2012年   268篇
  2011年   271篇
  2010年   255篇
  2009年   295篇
  2008年   269篇
  2007年   251篇
  2006年   203篇
  2005年   180篇
  2004年   184篇
  2003年   189篇
  2002年   150篇
  2001年   200篇
  2000年   208篇
  1999年   175篇
  1998年   171篇
  1997年   201篇
  1996年   177篇
  1995年   180篇
  1994年   165篇
  1993年   167篇
  1992年   195篇
  1991年   191篇
  1990年   150篇
  1989年   151篇
  1988年   124篇
  1987年   121篇
  1986年   127篇
  1985年   178篇
  1984年   155篇
  1983年   171篇
  1982年   137篇
  1981年   168篇
  1980年   140篇
  1979年   160篇
  1978年   135篇
  1977年   119篇
  1976年   125篇
  1975年   106篇
  1974年   101篇
  1973年   85篇
  1972年   64篇
  1971年   58篇
排序方式: 共有9823条查询结果,搜索用时 15 毫秒
71.
Financial primitives are introduced to define acceptable loss exposures when demands and supplies are defined on differing event spaces. Acceptable loss exposures are modeled by a convex cone of random variables containing the nonnegative random variables. The resulting financial equilibrium defines in general a two price economy. Analytical procedures for identifying the two prices are described. The size of the two price economy is fundamentally determined by the financial system that determines the size of the cone of acceptable losses. There are implications for accounting and risk management as liabilities would typically be valued at ask while assets are valued at bid with no data available on bidirectional prices for anything. Marking to market in such financial economies is at best marking to two price economies.  相似文献   
72.
It is often stated that real house prices respond to inflation in ways similar to assets infixed supply, such as gold or antiques. This paper proposes that, instead, house prices are determined primarily by the cost of producing new houses. Thus, inflation affects price mainly through input markets and through expansion in housing starts. This proposition is supported in an examination of annual changes in house prices between 1965 and 1982 in 12 sub regions of the United States  相似文献   
73.
In the consumer behavior context, multiattribute attitude models used to predict consumer choice in multiple criteria decision making situations have produced mixed results. Prediction of consumer behavior from attitudes, consequently, has been highly debated in recent years with researchers using beliefs-only, full, and extended multiattribute attitude models. The research underlying this paper was designed to compare the predictive superiority of the beliefs-only model, the full multiattribute attitude model, and a new representation identified as the combined multiattribute/determinant attribute attitude model. Data concerning patronage of fast-food chains were collected from a student panel for seven weeks. Predictive superiority was determined by average adjusted R2 using the patronage behavior dependent variable. All models were tested in aggregated and disaggregated form.  相似文献   
74.
Abstract. The labor turnover rate in Japan is less than half the US level. A small-scale survey of companies that operate in both Japan and the USA was conducted to examine reasons for the discrepancy. The main findings are that Japanese human resource policies, including steep seniority-earnings profiles, extensive fringe benefits, participatory management, and a reluctance to recruit experienced workers from other firms, contribute to the lower Japanese turnover rate. Additionally, workers of Japanese descent in the USA have a somewhat lower labor turnover rate than other Americans, suggesting some role for cultural differences.  相似文献   
75.
This paper analyzes countertrade as a special case of a customs union in which the countertrade agreement gives rise (as in customs union theory) to both trade-creating and trade-diverting effects. The net effects on welfare are ambiguous. A detailed case study from Egypt and brief examples from other countries illustrate the relevance of this interpretation .  相似文献   
76.
This special issue contributes to the development economics literature by highlighting the role of information communication and technologies (ICTs) in supporting rural and agricultural development. It is comprised of nine papers. Key findings from this special issue include: (1) internet use increases rural consumption diversity and agricultural productivity; (2) smartphone use empowers rural women in household decision-making and off-farm work participation; (3) smartphone-based agricultural extension services boost rural income growth; (4) a lack of ICT infrastructure and inadequate skills to use digital technologies are two key factors that lead to digital poverty traps for smallholder rural farmers; (5) ICT adoption increases the probability of rural households' access to credit and empowers rural women and farm households in relatively less developed regions to access credit; (6) digital financial inclusion reduces farmers' vulnerability to poverty; and (7) e-commerce adoption increases both sales prices and marketing costs, but the magnitude of increasing the former is higher than the magnitude of increasing the latter, which finally contributes to a higher gross return. This special issue also proposes practical instruments and implications for advancing the application of ICTs in rural areas to accelerate rural and agricultural development in the digital age.  相似文献   
77.
78.
Government permission is required to dismiss or lay off even a single worker in India and Zimbabwe. Dynamic labor demand equations, derived from a CES cost minimization model, are estimated for 64 manufacturing industries in these two countries. The data reveal a substantial reduction in demand for workers but no slowing in adjustment of number of employees following enactment of the labor laws. In India, no comparable reduction in labor demand occurred in small scale plants uncovered by the job security regulations. Among larger Indian plants, the drop in labor demand is estimated to be largest in industries where: coverage of the legislation is more extensive, private ownership dominates, and there are fewer union members.  相似文献   
79.
ThiS paper investigates whether the output of the Mexican maquiladoras is an alternative to production in the Pacific Rim. The analysis involves estimating supply functions for Mexican maquiladora output using relative wage data for Mexico, Singapore, and the United States. It also involves estimating the impact of relative wage rates on maquiladora output in five industries as well as on more aggregated levels. Results indicate that production in Mexico and in the Pacific Rim are substitutes, although this relationship is stronger for some industries than for others.  相似文献   
80.
This article is geared toward shedding some more light on what may be the next space race and its contours.Space flight is undoubtedly a human achievement of the second half of the 20th century, and probably the most audacious one of the past century. The space race started suddenly in the 1950s and has grown explosively during the following two decades, but decreased steadily after the 1970s. After the 1990s, however, we have seen a shy rebirth of space-related activities, when many other actors (states) entered the stage, adding up to the agonizing role of the two-actor piece that we have witnessed during the so-called Cold War.The opening years of the 21st century provided a more complex narrative for space exploration. At the start of the new millennium a new technosphere [1] emerged, dominated by what is used to be called as the Information and Communications Technologies (ICT), with the Internet playing the leading role among the bandwagon of technological novelties that appeared during the twilight of space activities. In despite of the fact that artificial satellites represent the very backbone of the global communications system, space activities seem to play a secondary role amidst the apparently accelerated rate of change concerning the technological systems of the present technosphere. But, as it is demonstrated in this paper, things are changing, and very probably a renewed space race will unfold in the coming decades.A question may be placed: what happened? Why the Earth stood still with regard to the race toward the cosmos? Answer: futurists, even prestigious ones like Herman Kahn and Arthur Clarke, did not consider the existence of socioeconomic long waves (Kondratieff waves, or K-waves for short) with their two decades long economic downturn, which has contributed to the deceleration of space-related activities.Analyzing the worldwide evolving scenario of space-related activities during the last eighty years under the framework of the succeeding K-waves and applying some technological forecasting tools, namely the logistic analysis, technological surveillance and intensive data mining, scrutinizing more than 7500 events occurred in the period 1930–2010 related with space activities, it is demonstrated that the space race like the one that we have witnessed until now is a natural growth process that has saturated at the dawn of this century. The same analysis demonstrates that a new growth process in this field might be nowadays under way with contours very different from that imagined by futurists and science fiction writers sixty years ago. Also the main trends in the usage of launching vehicles and satellites are framed and discussed in this paper.  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