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   1311篇
  免费   56篇
财政金融   192篇
工业经济   105篇
计划管理   240篇
经济学   267篇
综合类   19篇
运输经济   15篇
旅游经济   29篇
贸易经济   279篇
农业经济   101篇
经济概况   113篇
邮电经济   7篇
  2023年   6篇
  2022年   5篇
  2021年   12篇
  2020年   18篇
  2019年   44篇
  2018年   43篇
  2017年   43篇
  2016年   45篇
  2015年   34篇
  2014年   39篇
  2013年   178篇
  2012年   42篇
  2011年   48篇
  2010年   47篇
  2009年   39篇
  2008年   45篇
  2007年   39篇
  2006年   38篇
  2005年   29篇
  2004年   31篇
  2003年   31篇
  2002年   39篇
  2001年   26篇
  2000年   24篇
  1999年   35篇
  1998年   27篇
  1997年   25篇
  1996年   30篇
  1995年   19篇
  1994年   22篇
  1993年   16篇
  1992年   20篇
  1991年   17篇
  1990年   23篇
  1989年   17篇
  1988年   13篇
  1987年   16篇
  1986年   21篇
  1985年   16篇
  1984年   10篇
  1983年   9篇
  1981年   5篇
  1980年   6篇
  1979年   10篇
  1978年   6篇
  1977年   8篇
  1975年   8篇
  1974年   8篇
  1973年   6篇
  1970年   5篇
排序方式: 共有1367条查询结果,搜索用时 93 毫秒
61.
当今,全世界各国家和地区的卫生部门都在借助电子健康,改进他们的卫生系统,使国民或者病人受益.电子健康在这里,是指所有医疗保健方面的信息通讯技术的应用.为了改进医疗健康服务,信息通讯技术在以下三方面有很大的应用:·教育国民和专业人员如何诊治和预防疾病;·公共卫生的监督和规划;·生物医学研究和诊疗常规的知识库管理.  相似文献   
62.
The entrepreneurial ecosystems literature has increasingly explored network relationships between different stakeholders, as well as the role of context. This article addresses the challenge of including a sport context in the entrepreneurial ecosystem literature thereby contributing to the sport entrepreneurship literature by bringing insights from entrepreneurship ecosystem research. In‐depth interviews of football stakeholders in the sport entrepreneurship ecosystem are conducted in terms of understanding the emergence of digital sport start‐ups. The issues raised help explore the changing nature of digital entrepreneurial ecosystems to take into account new sport technological advances. Mixed embeddedness theory is used as the conceptual foundation to understand sport digital entrepreneurial ecosystems. Key management practices are identified in terms of sport start‐ups participating in entrepreneurial ecosystems. The article concludes by making suggestions for future research.  相似文献   
63.
The development of state farmland preservation policies has primarily relied upon results of the Census of Agriculture that is updated every 5 years by the USDA National Agriculture Statistics Service. Questions about the suitability of the Census of Agriculture center on the measures of total farmland and total cropland as reported by agricultural producers. The reliance on these variables fails to distinguish between conversion to developed uses and other fluctuations in the total availability of farmland. This inability to directly measure farmland conversion to developed uses has been shown to influence state level farmland preservation policies. The policies of Illinois and Indiana highlight the disparate approaches, with Illinois pursuing an intensive policy to protect farmland and Indiana choosing to not address farmland preservation at a state level. In order to assess the suitability of the different approaches to farmland preservation policy it is critical to evaluate the Census of Agriculture data used to justify the policies of Illinois and Indiana.  相似文献   
64.
Growth in legal gaming in the United States over the past quarter century or so is well-documented. One important factor fueling this growth was the passage of the Indian Gaming Regulatory Act of 1988, which permitted Native American tribes to establish, under agreements or “compacts” with the states in which they are located, casinos offering what is known as Class III gaming: slot machines, blackjack, roulette, and other games. Since the passage of the Act, there have been 21 Native American casinos established in Michigan. Also, three non-Native American casinos opened in Detroit in 1999 and 2000. This growth in the number of casinos has sparked a wide-ranging debate over the social and economic impacts of casino development.The purpose of this research is to focus on the crime issue in the broader casino debate. We investigate the impact of these Michigan casinos on the rates of burglary, robbery, larceny and motor vehicle theft (property crimes) in casino host counties as well as in nearby counties. We employ a panel data set with annual observations on all 83 Michigan counties for the period 1994–2010. The dataset includes crime rates taken from the FBI crime data series, variables for the presence of a casino in a county or in a nearby county, the scale of a casino's operations as measured by revenues, and a variety of control variables suggested by the broader literature investigating the factors that determine crime rates generally.Our results suggest that in most cases the property crime rates studied are not affected by the presence or size of a casino in a county or in a nearby county. The largest such impact, which is negative, is for motor vehicle theft. The size of a casino does have a small positive effect on the motor vehicle theft rate.  相似文献   
65.
Using wheat market support data from 55 countries for 1961–2011 from the World Bank Agricultural Distortion database, we develop a fixed effect model that shows a more complicated, nonlinear relationship between income and wheat support and its components than previously realised. We find that income generally has a greater effect on border market price support than on domestic price support. Moreover, the difference between these types of support is greater for net importers than for net exporters and has increased with the URAA or WTO accession. Holding other variables constant, the wheat support level of China, driven mainly by border market price support, is projected to rise with future income growth. Meanwhile, Japan is projected to maintain its high level of support, while the US and EU are projected to maintain their lower levels of support. These results are relevant in the context of multilateral trade negotiations, arguing against a narrow focus on past or current policy profiles and for long‐run analyses that might mistakenly rest on the inconsistent assumptions of constant agricultural policies against the backdrop of rising incomes.  相似文献   
66.
Information on the climate impact of a food product has practically not been communicated in Germany, even though it could provide important acknowledgement of producers’ actions in low‐carbon production. So far, carbon labelling has predominantly been discussed without taking into account German consumers’ opinions (proven by empirical data) on this issue, even though involving the consumer in the considerations of a Carbon Label is essential for its success. Especially the question, if information on the product carbon footprint is a considerable factor within the search process of a purchase decision, was of special interest in this work. To answer these questions, we analysed consumers’ information‐seeking behaviour using an information display matrix (IDM) experiment with 232 participants. The IDM is a process tracing technique which allows to track the information search in a buying process. Our results show that basically the place of origin is the most important criterion for the purchase decision, followed by price and production method (conventional/organic). In contrast, the sustainability information (i.e., carbon footprint and water consumption) are at a low level of importance. Comparing two locally produced products with the help of a multinominal logistic regression‐model, it seems that the group of consumers preferring organic products is influenced in the purchase decision by the carbon footprint information. In summary it can be stated that although some people may be basically interested in carbon labelling of fresh food, the purchase decision would probably be hardly influenced by a carbon label on vegetables at present. The majority of people are more concerned about factors like origin and price so that Carbon Labelling would only be a viable option for a small group of consumers.  相似文献   
67.
A central construct in competitive strategy research is market power, the ability to raise price above marginal cost. Positioning research focuses on attempts to build, protect, and exercise market power. However, this approach contains hidden assumptions about transaction costs. Parties made worse off by the exercise of market power can negotiate, bargain, form coalitions, and otherwise contract around the focal firm's attempts to appropriate monopoly profits—depending on transaction costs. We build on property rights economics to explain how transaction costs affect positioning and offer propositions about successful positioning in an environment with transaction costs.  相似文献   
68.
In 2015, the Federal Communications Commission (FCC) imposed common carriage regulation—so-called Title II requirements—on previously unregulated broadband Internet service providers. The regime shift was premised on the FCC’s findings that such rules had demonstrably yielded economic gains. This paper evaluates the FCC’s empirical arguments and finds them uncompelling. Adjustments for inflation or general economic trends eliminate the effects cited by the FCC. Moreover, contrary to the Commission’s assessment, mobile services and broadband markets have shown notable growth in response to deregulatory events that reduce Title II requirements.  相似文献   
69.
Risk,uncertainty and the theory of planned behavior: A tourism example   总被引:1,自引:0,他引:1  
The differential impacts risk and uncertainty have on travel decision-making were explored by examining the constructs' influence on the antecedents of intentions to visit Australia using the theory of planned behavior. Respondents were obtained from online consumer panels in South Korea, China and Japan. The South Korean and Chinese samples were general population samples, while the sample from Japan was an international travelers' sample. The extended model fitted the data well, explaining between 21 and 44 percent of the variance in intentions. Subjective norms and perceived behavioral control significantly impacted on intentions in all country samples, whereas attitudes toward visiting Australia were only significant in Japan. Subjective norms influenced attitudes and perceived behavioral control in all country samples. Finally, perceived risk influenced attitudes toward visiting Australia in South Korea and Japan, while perceived uncertainty influenced attitudes toward visiting Australia in South Korea and China and perceived behavioral control in China and Japan.  相似文献   
70.
Profiling involves the collection and use of online information about prospective and current employees to evaluate their fitness for and in the job. Workplace and legal studies suggest an expanded use of profiling and significant legal/professional implications for HRM practitioners, yet scant attention has been afforded to the boundaries of such practices. In this study, profiling is framed as a terrain on which employees and employers assert asymmetrical interests. Using survey data from large samples in Australia and the UK, the study investigates the prevalence and outcomes of profiling; the extent to which employees assert a right to privacy versus employer rights to engage in profiling; the extent to which organisations codify profiling practices; and employee responses in protecting online information. The findings contribute to a small and emerging body of evidence addressing how social media conduct at work is reconstituting and reshaping the boundaries between public and private spheres.  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