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   5323篇
  免费   194篇
  国内免费   2篇
财政金融   1232篇
工业经济   438篇
计划管理   762篇
经济学   999篇
综合类   42篇
运输经济   114篇
旅游经济   320篇
贸易经济   1087篇
农业经济   123篇
经济概况   394篇
信息产业经济   1篇
邮电经济   7篇
  2023年   54篇
  2022年   37篇
  2021年   59篇
  2020年   107篇
  2019年   185篇
  2018年   227篇
  2017年   239篇
  2016年   203篇
  2015年   127篇
  2014年   208篇
  2013年   843篇
  2012年   270篇
  2011年   275篇
  2010年   239篇
  2009年   235篇
  2008年   185篇
  2007年   143篇
  2006年   120篇
  2005年   133篇
  2004年   125篇
  2003年   122篇
  2002年   134篇
  2001年   93篇
  2000年   77篇
  1999年   84篇
  1998年   77篇
  1997年   53篇
  1996年   57篇
  1995年   67篇
  1994年   53篇
  1993年   53篇
  1992年   44篇
  1991年   53篇
  1990年   31篇
  1989年   26篇
  1988年   35篇
  1987年   27篇
  1986年   41篇
  1985年   40篇
  1984年   29篇
  1983年   35篇
  1982年   36篇
  1981年   28篇
  1980年   27篇
  1979年   31篇
  1978年   23篇
  1977年   22篇
  1976年   16篇
  1973年   17篇
  1971年   16篇
排序方式: 共有5519条查询结果,搜索用时 15 毫秒
71.
This article critically examines the pertinent issues in ex ante and ex post moral hazard in healthcare markets, with the U.S. Affordable Care Act (ACA) as its focal point of inquiry. First, it compares the various types of information asymmetries resulting from the production, allocation, and utilization of health insurance. Second, it reviews the literature on adverse selection, moral hazard, and risk mitigation against which salient ACA reforms are analyzed. In contrasting conventional moral hazard from an alternative theory of welfare maximization, it suggests that healthcare (over)utilization cannot necessarily be considered wasteful, even if it ends up costing insurers more on a short-term basis. Costs and savings attributable to healthcare spending under the ACA will vary between the consumer, insurer, and regulator-subsidizer. Despite the ambiguities surrounding definitions of “health,” the challenge of containing inefficient moral hazard, and encouraging its desirable counterpart, lies in the tradeoffs that arise between consumer access to affordable and quality healthcare and the market competitiveness of health insurers. The new Trump administration will have to address these tradeoffs in repealing and replacing the ACA, particularly in light of escalating insurance premiums and deductibles, narrower provider networks, and technical implementation issues.  相似文献   
72.
This paper is an empirical study identifying the role of a relationship-specific capability of building capabilities through relationships (CBC) when suppliers put efforts into increasing their perceived market effectiveness by managing the effects of relationship quality. The relationship between relationship quality and effectiveness is mediated by CBC. Suppliers in a supply chain form different levels of relationship quality with partners in response to market conditions and industry characteristics. Relationship marketing by suppliers requires a deep understanding of the role of CBC that is developed by a supplier and an effective utilization of CBC to lead an effective relationship to better outcomes. This leads to maximizing of the competitive advantages for suppliers and will help maintain effective relationships.  相似文献   
73.
Household Finance   总被引:17,自引:0,他引:17  
The study of household finance is challenging because household behavior is difficult to measure, and households face constraints not captured by textbook models. Evidence on participation, diversification, and mortgage refinancing suggests that many households invest effectively, but a minority make significant mistakes. This minority appears to be poorer and less well educated than the majority of more successful investors. There is some evidence that households understand their own limitations and avoid financial strategies for which they feel unqualified. Some financial products involve a cross‐subsidy from naive to sophisticated households, and this can inhibit welfare‐improving financial innovation.  相似文献   
74.
While many studies find that option prices lead stock prices, Stephan and Whaley (1990) find that stocks lead options. We find no evidence that options, even deep out-of-the-money options, lead stocks. After confirming Stephan and Whaley's results, we show their results can be explained as spurious leads induced by infrequent trading of options. We show that the stock lead disappears when the average of the bid and ask prices is used instead of transaction prices. Hence, we find no evidence of arbitrage opportunities associated with the stock lead.  相似文献   
75.
This study draws on strategic factor market theory and argues that acquirers' decisions regarding whether to bid for a firm reflect their expectations about employee departure from the firm post‐acquisition, suggesting a negative relationship between the anticipated employee departure from a firm and the likelihood of the firm becoming an acquisition target. Using a natural experiment and a difference‐in‐differences approach, we find causal evidence that constraints on employee mobility raise the likelihood of a firm becoming an acquisition target. The causal effect is stronger when a firm employs more knowledge workers in its workforce and when it faces greater in‐state competition; by contrast, the effect is weaker when a firm is protected by a stronger intellectual property regime that mitigates the consequences of employee mobility. Copyright © 2014 John Wiley & Sons, Ltd.  相似文献   
76.
Drawing from the notion of cultural friction and based on the agency theory rationalization of multinational enterprise (MNE) headquarter–subsidiary relationship, we examine the impact of cultural friction in foreign subsidiaries on subsidiary performance. We argue that cultural friction, arising due to a high presence of parent country nationals (PCNs) in culturally distant locations, has a detrimental effect on subsidiary performance. This effect is the strongest when the cultural friction is at the top management team (TMT) level and the weakest when friction is at the regular employee level. However, this relationship is contingent on factors that work as drags or lubricants for cultural friction between PCNs and host country nationals (HCNs). We identify governance mode and language differences between home and host countries as drag parameters and host country experience and subsidiary interdependence as lubricants that condition the effect of cultural friction on subsidiary performance. Empirical findings based on a longitudinal sample of 7,495 foreign subsidiary observations of 467 Korean MNEs in 63 countries during 1990–2014 provide robust support for our theoretical predictions.  相似文献   
77.
Background:

Telaprevir (TVR,T) and boceprevir (BOC,B) are direct-acting antivirals (DAAs) used for the treatment of chronic genotype 1 hepatitis C virus (HCV) infection. This analysis evaluated the cost-effectiveness of TVR combined with pegylated interferon (Peg-IFN) alfa-2a plus ribavirin (RBV) compared with Peg-IFN alfa-2a and RBV (PR) alone or BOC plus Peg-IFN alfa-2b and RBV in treatment-experienced patients.

Methods:

A Markov cohort model of chronic genotype 1 HCV disease progression reflected the pathway of experienced patients retreated with DAA therapy. The population was stratified by previous response to treatment (i.e., previous relapsers, partial responders, and null responders). Sustained virologic response (SVR) rates were derived from a mixed-treatment comparison that included results from separate Phase III trials of TVR and BOC. Incremental cost per life year (LY) gained and quality-adjusted-life-year (QALY) gained were computed at lifetime, adopting the NHS perspective. Costs and health outcomes were discounted at 3.5%. Uncertainty was assessed using deterministic and probabilistic sensitivity analyses. Sub-group analyses were carried out by interleukin (IL)-28B genotype.

Results:

Higher costs and improved outcomes were associated with T/PR relative to PR alone for all experienced patients (ICER of £6079). T/PR was cost-effective for each sub-group population with high SVR advantage in relapsers (ICER of £2658 vs £7593 and £20,875 for partial and null responders). T/PR remained cost-effective regardless of IL-28B sub-type. Compared to B/PR, T/PR prolonged QALYs by 0.57 and reduced lifetime costs by £13,960 for relapsers. For partial responders T/PR was less costly but less efficacious than B/PR, equating to an ICER of £128,117 per QALY gained.

Limitations:

No head-to-head trial provides direct evidence of better efficacy of T/PR vs B/PR.

Conclusion:

T/PR is cost-effective compared with PR alone in experienced patients regardless of treatment history and IL-28B genotype. Compared to B/PR, T/PR is always cost-saving but only more effective in relapsers.  相似文献   

78.
We track the fortunes of all 2,206 individuals identified as responsible parties for all 788 Securities and Exchange Commission (SEC) and Department of Justice (DOJ) enforcement actions for financial misrepresentation from January 1, 1978 through September 30, 2006. Fully 93% lose their jobs by the end of the regulatory enforcement period. Most are explicitly fired. The likelihood of ouster increases with the cost of the misconduct to shareholders and the quality of the firm's governance. Culpable managers also bear substantial financial losses through restrictions on their future employment, their shareholdings in the firm, and SEC fines. A sizeable minority (28%) face criminal charges and penalties, including jail sentences that average 4.3 years. These results indicate that the individual perpetrators of financial misconduct face significant disciplinary action.  相似文献   
79.
Managers are subject to high stress and burnout in their demanding roles, so addressing their worklife and level of burnout is important to retain leadership in healthcare organizations. The purpose of this study was to examine the relationship between the observed leadership style of directors and the worklife and burnout of healthcare managers. A secondary analysis of data from 176 leaders in five different managerial cohorts within a provincial cancer agency was conducted using multiple regression and MANCOVA analysis. The study used data collected from the Worklife Improvement and Leadership Development study in 2006, the Kouzes and Posner Leadership Practices Inventory, the Maslach Burnout Inventory, and the Areas of Worklife Survey. Findings indicate the importance of transformational leadership styles to empower managers. Directors may improve the worklife of managers by using transformational leadership practices to address the amount of control and appropriateness of rewards to positively influence the job satisfaction of managers.  相似文献   
80.
Malaysia's New Economic Policy (NEP), promulgated in 1971, established a two-pronged national social justice agenda of poverty reduction, and social restructuring or pro-Bumiputera affirmative action. This distinction of these policy objectives must be appreciated, but various misconceptions, especially regarding affirmative action, have resulted in polarization and stalemate after 50 years of the NEP. Social justice and affirmative action must be conceptualized and evaluated with clarity and rigor, with policy objectives, mechanisms and outcomes aligned. Malaysia needs to systematically formulate a new social justice paradigm, building on the NEP and anchored on the principles of equality and fairness. In the affirmative action sphere, this framework must focus on developing capability and competitiveness, and balance identity, need and merit in the allocation of opportunity.  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