全文获取类型
收费全文 | 135213篇 |
免费 | 3864篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 25507篇 |
工业经济 | 11569篇 |
计划管理 | 21526篇 |
经济学 | 28940篇 |
综合类 | 1445篇 |
运输经济 | 967篇 |
旅游经济 | 2486篇 |
贸易经济 | 23439篇 |
农业经济 | 6063篇 |
经济概况 | 16842篇 |
信息产业经济 | 7篇 |
邮电经济 | 287篇 |
出版年
2021年 | 836篇 |
2020年 | 1620篇 |
2019年 | 2397篇 |
2018年 | 2307篇 |
2017年 | 2497篇 |
2016年 | 2693篇 |
2015年 | 2096篇 |
2014年 | 3420篇 |
2013年 | 15318篇 |
2012年 | 4185篇 |
2011年 | 4123篇 |
2010年 | 3681篇 |
2009年 | 4320篇 |
2008年 | 3849篇 |
2007年 | 3203篇 |
2006年 | 3556篇 |
2005年 | 3558篇 |
2004年 | 3099篇 |
2003年 | 2875篇 |
2002年 | 2854篇 |
2001年 | 2617篇 |
2000年 | 2527篇 |
1999年 | 2443篇 |
1998年 | 2281篇 |
1997年 | 2332篇 |
1996年 | 2182篇 |
1995年 | 1980篇 |
1994年 | 2002篇 |
1993年 | 1967篇 |
1992年 | 2020篇 |
1991年 | 1902篇 |
1990年 | 1805篇 |
1989年 | 1668篇 |
1988年 | 1607篇 |
1987年 | 1607篇 |
1986年 | 1684篇 |
1985年 | 2433篇 |
1984年 | 2313篇 |
1983年 | 2104篇 |
1982年 | 1965篇 |
1981年 | 1912篇 |
1980年 | 1869篇 |
1979年 | 1805篇 |
1978年 | 1626篇 |
1977年 | 1626篇 |
1976年 | 1376篇 |
1975年 | 1264篇 |
1974年 | 1185篇 |
1973年 | 1185篇 |
1972年 | 898篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
Díaz-Fernández M. Carmen González-Rodríguez M. Rosario Pawlak Marek Simonetti Biagio 《Quality and Quantity》2019,53(5):2421-2438
Quality & Quantity - Family firms (FFs) are the backbone of entrepreneurial fabric in many countries. Management of such businesses is complex because of their features: the overlap between... 相似文献
52.
Philip S. Wells Anthonie W. A. Lensing Lloyd Haskell Bennett Levitan François Laliberté Michael Durkin 《Journal of medical economics》2018,21(6):587-594
Aims: The EINSTEIN-Extension trial (EINSTEIN-EXT) found that continued treatment with rivaroxaban for an additional 6 or 12 months (vs placebo) after 6–12 months of initial anticoagulation significantly reduced the risk of recurrent venous thromboembolism (VTE) with a small non-significant increased risk of major bleeding (none fatal or in critical site). This study aimed to compare total healthcare cost between rivaroxaban and placebo, based on the EINSTEIN-EXT event rates.Methods: Total healthcare cost was calculated as the sum of treatment and clinical event costs from a US managed care perspective. Treatment duration and event rates were obtained from the EINSTEIN-EXT study. Adjustment on treatment duration was made by assuming a 10% non-adherence rate. Drug costs were based on wholesale acquisition costs. Cost estimates for clinical events (i.e. recurrent deep vein thrombosis [DVT], recurrent pulmonary embolism, major bleeding, clinically relevant non-major bleeding) were determined from the literature. Results were examined over a ±20% range of each cost component and over 95% confidence intervals (CIs) of event rate differences in deterministic (one-way) and probabilistic sensitivity analyses (PSA).Results: Total healthcare cost was $1,454 lower for rivaroxaban-treated (vs placebo-treated) patients in the base-case, with a lower clinical event cost fully offsetting drug cost. The cost savings of recurrent DVT alone (–$3,102) was greater than drug cost ($2,723). Total healthcare cost remained lower for rivaroxaban in the majority (73%) of PSA (cost difference [95% CI]?=?–$1,454 [–$2,396, $1,231]).Limitations: This study was conducted over the 1-year observation period of the EINSTEIN-EXT trial, which limited “real-world” applicability and examination of long-term economic impact. Assumptions on drug and clinical event costs were US-based and, thus, not applicable to other healthcare systems.Conclusions: Total healthcare costs were estimated to be lower for patients continuing rivaroxaban therapy compared to those receiving placebo in VTE patients who had completed 6–12 months of VTE treatment. 相似文献
53.
54.
55.
Audretsch David B. Link Albert N. 《The International Entrepreneurship and Management Journal》2019,15(1):195-208
A compelling body of research has found that investments in knowledge from other firms and universities spill over to enhance the performance of entrepreneurial firms. This literature has shown that firm performance is positively related to investments in new knowledge by other firms and research universities. This paper addresses a gap in the literature by positing that public sector knowledge is also conducive to enhancing performance by knowledge intensive entrepreneurial (KIE) firms. Our findings suggest that the public sector provides a fertile source of knowledge for enhancing KIE firm performance.
相似文献56.
Thomas R. Buckley 《Business History》2018,60(4):512-541
A defining feature of large-scale retailing during the period 1950–1980 was the emergence and evolution of planned shopping centres. During the 1950s, department stores in the United States were in the vanguard of this phenomenon. In contrast, British department stores continued operating from traditional high street sites, and had limited opportunities for expansion within planned shopping centres until the 1970s. This paper addresses the connection between department store retailing and the development of the planned shopping centre in Britain from the perspective of one enterprise: the John Lewis Partnership. The article demonstrates that the Partnership was willing to operate department stores within centrally located shopping centres, but was circumspect about operating stores in non-centrally located shopping centres. 相似文献
57.
Advertising situated in environments where people congregate or pass through on their way to somewhere else benefit from being placed in such high traffic areas. However, these strategically placed ads also suffer from conditions of human crowding that prevents them from being noticed and processed. We undertake a study of place-based advertising in a shopping mall using facial recognition software to determine the effect of human density on the attention directed to advertising. We find that as human density increases, attention to advertising decreases, but only to a point where it begins to increase again. Our research also finds that human density plays a moderating role on the motivation to process advertising. 相似文献
58.
Drawing on 45 semi‐structured interviews with union negotiators active in the Quebec private sector, this article shows that local bargaining practices, despite their plurality, have tended to change following major trends. It also reveals, more fundamentally, a redefinition of the ‘rules of the game’. The transformation and stability of these social rules, which are much more focused on the needs of employers, have tended to weaken collective bargaining as a tool for industrial democracy. 相似文献
59.
This study examines why most derivatives markets that settle on the day following expiration choose the opening rather than the closing price as the final settlement price (FSP), whereas most markets that settle on the expiration day select an average rather than a single price as the FSP. Four exogenous changes in the Taiwan Futures Exchange settlement procedures provide an experimental basis for studying the settlement procedures’ impact on underlying assets. Greatest market efficiency is observed when the FSP is determined by a single rather than an average price and hypothesize that manipulation is prevented at the expense of market quality. 相似文献
60.
Cristian A. Pinto‐Gutirrez 《Canadian Journal of Administrative Sciences / Revue Canadienne des Sciences de l\u0027Administration》2019,36(3):432-449
This paper examines the role of media coverage and investor attention on the outcomes of seasoned equity offerings (SEOs). I use an archive of Thomson Reuters news articles to proxy for firm visibility and investor attention. I find that the volumes of news articles prior to the offerings are positively associated with the offer price discounts of SEOs. Furthermore, the volumes of news articles are negatively associated with the cumulative abnormal returns three days around the SEOs. I conclude that the costs of equity increase with media coverage prior to SEOs. Overall, the evidence is consistent with the hypothesis that media coverage affects investors' information processing in SEOs. Copyright © 2018 ASAC. Published by John Wiley & Sons, Ltd. 相似文献