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   3059篇
  免费   76篇
  国内免费   1篇
财政金融   353篇
工业经济   212篇
计划管理   469篇
经济学   686篇
综合类   20篇
运输经济   35篇
旅游经济   39篇
贸易经济   635篇
农业经济   91篇
经济概况   592篇
邮电经济   4篇
  2023年   25篇
  2022年   18篇
  2021年   34篇
  2020年   64篇
  2019年   91篇
  2018年   125篇
  2017年   145篇
  2016年   149篇
  2015年   68篇
  2014年   96篇
  2013年   302篇
  2012年   156篇
  2011年   166篇
  2010年   95篇
  2009年   108篇
  2008年   100篇
  2007年   82篇
  2006年   80篇
  2005年   122篇
  2004年   109篇
  2003年   76篇
  2002年   44篇
  2001年   40篇
  2000年   33篇
  1999年   45篇
  1998年   31篇
  1997年   27篇
  1996年   30篇
  1995年   26篇
  1994年   27篇
  1993年   21篇
  1992年   20篇
  1991年   20篇
  1990年   22篇
  1989年   20篇
  1988年   20篇
  1987年   21篇
  1986年   17篇
  1985年   18篇
  1984年   16篇
  1982年   17篇
  1981年   17篇
  1980年   20篇
  1978年   12篇
  1975年   10篇
  1969年   11篇
  1965年   9篇
  1960年   8篇
  1946年   8篇
  1942年   10篇
排序方式: 共有3136条查询结果,搜索用时 0 毫秒
61.
Background: Non-vitamin K antagonist oral anticoagulants (NOACs) have been included in international guidelines as important alternatives to vitamin K antagonists (VKAs) for the treatment of venous thromboembolism (VTE) and stroke prevention in non-valvular atrial fibrillation (NVAF). Meanwhile, in the Netherlands, NOACs are widely used next to VKAs. The objective of this study is to estimate the cost-effectiveness of treatment with rivaroxaban compared to VKAs in NVAF and VTE patients in the Netherlands, using data from international prospective observational phase IV studies.

Methods: Two models were developed to represent NVAF and VTE patients, populated with patients from the XANTUS (NCT01606995) and XALIA (NCT01619007) international prospective observational studies. The 1-year cost-effectiveness of rivaroxaban use, compared to VKAs, was explored in a population consisting of NVAF and VTE patients (base case) as well as for four scenarios with sub-populations: NVAF patients only, VTE patients only, NVAF patients with unstable international normalized ratio (INR), and NVAF patients using an INR self-measuring device.

Results: In the base case, rivaroxaban saved €72,350 and gained 21 quality-adjusted life-years (QALYs) in a simulation of 2,000 patients over the use of VKAs. Ergo, rivaroxaban was dominant over VKAs. The probabilistic sensitivity analysis showed a probability of 85% for rivaroxaban being dominant and 100% at a willingness-to-pay threshold of €20,000/QALY. Rivaroxaban appeared to be dominant in all scenarios as well, except for the NVAF-patients-only scenario where the incremental cost-effectiveness ratio (ICER) was €157/QALY.

Conclusions: In patients with NVAF or VTE, rivaroxaban treatment is likely to be cost-effective and a potentially cost-saving alternative to VKA in the Netherlands.  相似文献   

62.
Business schools are the “nurseries” of the corporate world. This article offers an empirical analysis of the business student ethos on the basis of research conducted at three Dutch universities. A theoretical framework in the tradition of virtue ethics and dubbed “moral ethology” is used to identify the values business schools convey to their students. The central research question is: What types of ethos do Dutch business students have? Forty-three undergraduate students participated in Q-methodological research, a mixed qualitative–quantitative small-sample method. Five different types of ethos were generated: Do-Good Managers, Market Managers, Searching Managers, Balancing Managers, and Radical Market Managers. Some general characteristics that apply to all the types of ethos were identified, such as the search for efficiency. It is argued that business schools should pay much more attention to the values that are endorsed in both life and business and should help students to address situations in which values are neglected.  相似文献   
63.
Life-cycle direct public fiscal contributions and transfers are studied using longitudinal income tax data from 1982 to 2016 and administrative files for immigrants landed in Canada from 1980 to 2016. Relative to a comparison group comprising the Canadian-born and immigrants landed before 1980, immigrants since 1980 have a lower average net direct fiscal contribution (NDFC) during their working years due to their lower taxes and social security contributions but a higher average NDFC after 65 years of age because of reduced public pension eligibility and entitlement. Immigrants who landed at younger than 19 years old have much higher direct fiscal contributions than other age-at-arrival groups and reach their peak of contributions around 10 years earlier in life than other age-at-arrival groups. Immigrants whose age at arrival is above 65 have a less negative average NDFC than other age-at-arrival groups over the above-65 life cycle. These life-cycle age𠄁at-arrival trajectories are stable for immigrants in different landing cohorts. We apply the life-cycle estimates to project the present discounted value of lifetime NDFCs for immigrants who landed in 2016. For each landing age group, refugees and family class immigrants have negative or zero average present values of life-cycle NDFCs, much below that of economic immigrants.  相似文献   
64.
de Vries  G.  Rietkerk  M.  Kooger  R. 《Journal of Consumer Policy》2020,43(2):345-352
Journal of Consumer Policy - In order to reach climate goals, policymakers stimulate homeowners to invest in sustainable measures in and around their house. Unfortunately, however, the number of...  相似文献   
65.
Constitutional Political Economy - In this paper, we examine the relationship between socioeconomic vulnerabilities and due process violations in contemporary Mexico, using a novel survey of...  相似文献   
66.
The number of social media posts that expose company integrity violations has increased dramatically. In response, some companies empower employees to respond to customer blogs, which requires employees to recognize the customer's perspective. We show that attentional bias modification can be used to prime employees of two global Fortune 100 companies with a self-sufficiency or empathy bias. The results indicate that narrative transportation, or the extent to which employees mentally enter the world evoked by a customer's story, mediates the effect of attentional bias on two relevant psychological ownership dimensions: acknowledgment of responsibility and willingness to respond. Participants with a self-sufficiency bias neither acknowledge responsibility nor want to respond. However, participants primed with an empathy bias take responsibility for the customer's case and respond to the integrity violation. We find evidence for two boundary conditions of this effect: (1) it strengthens when the employee perceives the customer's financial vulnerability as high and (2) it weakens when the customer is impolite in the blog post.  相似文献   
67.
68.
Most transition countries used tax‐supported wage norms in the early 1990s, as a part of their market liberalization programmes. This article analyses how a firm‐level tax (or subsidy) on deviations from a pre‐set wage norm may promote employment by rotating the labour demand curve perceived by the workers’ union around the value of the norm. We derive the conditions under which it yields a positive employment effect. We test the effect of the norm on the wages on a sample of Polish firms in 1990 and 1991. The data support the role of the wage norm on the position of the perceived labour demand curve and the role of the tax rate on its slope.  相似文献   
69.
Federally regulated or insured lenders in the United States are mandated to require flood insurance on properties that are located in areas at high risk of flooding. Despite the existence of this mandatory flood insurance requirement, take‐up rates for flood insurance have been low, and the federal government's exposure to uninsured property losses from flooding remains substantial. Meanwhile, the value of capital at risk varies significantly with flood events and changing risk perceptions, which necessitates mechanisms that stabilize these dynamics. In this article we discuss how a scenario of complete insurance uptake, under various risk attitudes, affects the value of properties in the 100‐year and 500‐year flood zones. Our results indicate that an increase in flood insurance uptake may provide such a mechanism by lowering the value of capital at risk in the flood zone consistently, independent of homeowners' risk attitudes. We apply an empirical adaptive agent‐based model to examine the capitalization of insurance costs, risk premiums, and their interaction in housing prices. Our approach combines widely‐used empirical hedonic analysis with the computational economic framework. We highlight the usefulness of our method in capturing the marginal implicit price of homeowners' preferences that may change over time and separately assess the effect of various factors and policies on property values, illustrating the agent‐based modeling as a valuable complement to traditional hedonic analysis.  相似文献   
70.
Setting the right approach for new product development (NPD) in the presence of uncertainty remains an ongoing debate in innovation management. Stage-gate systems (SGS) and agile methodology (AM) are the dominant approaches. Recently, hybrid approaches (combining SGS and AM) have been proposed. Although these hybrid approaches represent a significant development in NPD, combining them without considering their design principles might lead to contradictory and competing conceptual formulations, thus increasing the difficulty of comparison among studies. Moreover, scholars and practitioners may struggle to understand when, why and how a certain configuration of the NPD process provides the right response to different manifestations of uncertainty. The current literature faces problems regarding the clarity of design principles (e.g. flexibility and adaptability), and this has led to research gaps concerning the uncertainty contingency and outcomes of hybrid approaches. This study combines bibliometric and content analyses to identify four design parameters and principles of NPD hybrid approaches: flexibility, adaptability, velocity and integration. Our findings might help advance the development and comparison of different hybrid approaches.  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