全文获取类型
收费全文 | 15334篇 |
免费 | 460篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 3245篇 |
工业经济 | 1213篇 |
计划管理 | 2429篇 |
经济学 | 3296篇 |
综合类 | 168篇 |
运输经济 | 108篇 |
旅游经济 | 246篇 |
贸易经济 | 2478篇 |
农业经济 | 725篇 |
经济概况 | 1869篇 |
信息产业经济 | 2篇 |
邮电经济 | 16篇 |
出版年
2023年 | 78篇 |
2021年 | 98篇 |
2020年 | 206篇 |
2019年 | 283篇 |
2018年 | 373篇 |
2017年 | 374篇 |
2016年 | 351篇 |
2015年 | 234篇 |
2014年 | 369篇 |
2013年 | 1697篇 |
2012年 | 443篇 |
2011年 | 516篇 |
2010年 | 462篇 |
2009年 | 501篇 |
2008年 | 460篇 |
2007年 | 421篇 |
2006年 | 377篇 |
2005年 | 304篇 |
2004年 | 315篇 |
2003年 | 328篇 |
2002年 | 314篇 |
2001年 | 304篇 |
2000年 | 321篇 |
1999年 | 315篇 |
1998年 | 321篇 |
1997年 | 285篇 |
1996年 | 242篇 |
1995年 | 235篇 |
1994年 | 254篇 |
1993年 | 258篇 |
1992年 | 276篇 |
1991年 | 269篇 |
1990年 | 213篇 |
1989年 | 194篇 |
1988年 | 180篇 |
1987年 | 166篇 |
1986年 | 177篇 |
1985年 | 250篇 |
1984年 | 274篇 |
1983年 | 260篇 |
1982年 | 218篇 |
1981年 | 201篇 |
1980年 | 181篇 |
1979年 | 176篇 |
1978年 | 160篇 |
1977年 | 141篇 |
1976年 | 133篇 |
1975年 | 144篇 |
1974年 | 106篇 |
1973年 | 106篇 |
排序方式: 共有10000条查询结果,搜索用时 328 毫秒
941.
942.
943.
Edward S. Pearsall 《Journal of Economics》1965,25(3-4):278-286
944.
945.
An Infant Feeding Practices Study (IFPS) in 1982 in Kenya, which included a cross-sectional survey of a weighted sample of 980 low and middle income Nairobi mothers who had given birth in the previous 18 months, found that most women breastfeed their infants for long periods, but many introduce alternate feeding, especially infant formula, in the 1st 4 months (86 and 50% of the infants were breastfed at 6 and 15 months respectively, but 50% of the 2 month-olds and 63% of the 4 month-olds were receiving substitutes, mostly formula). This is done largely out of the belief that infant formula is an additional health benefit. A workshop to discuss the findings of the IFPS and other available data, and to make policy recommendations urged the adoption of a policy of protection, support and promotion of breastfeeding. Since breastfeeding is already widely prevalent in Kenya, protection of breastfeeding should receive the 1st priority in policy related to infant feeding. Attention should be directed at at least 2 influences which help undermine breastfeeding: widespread availability and promotion of breast milk substitutes. Support for breastfeeding is viewed as the 2nd policy priority. Situations where support can play a helpful role are, women's paid employment outside the home, hospital practices, maternal morbidity, and difficulties in breastfeeding. Since promotion is the least cost effective of the 3 options, and most Kenyan women are already motivated to breastfeed, this should be the last priority. Promotion includes reeduction of mothers to make them better aware of the benefits of breastfeeding. The workshop recommended the dissemination of appropriate information, consisting of standarized messages based on clearcut guidelines, using mass media techniques. 相似文献
946.
Some projects have such diverse requirements that they need a variety of specialists to work on them. But often the best-qualified specialists are scattered around the globe, perhaps at several companies. Remarkably, an extensive benchmarking study reveals, it isn't necessary to bring team members together to get their best work. In fact, they can be even more productive if they stay separated and do all their collaborating virtually. The scores of successful virtual teams the authors examined didn't have many of the psychological and practical obstacles that plagued their more traditional, face-to-face counterparts. Team members felt freer to contribute--especially outside their established areas of expertise. The fact that such groups could not assemble easily actually made their projects go faster, as people did not wait for meetings to make decisions, and individuals, in the comfort of their own offices, had full access to their files and the complementary knowledge of their local colleagues. Reaping those advantages, though, demanded shrewd management of a virtual team's work processes and social dynamics. Rather than depend on videoconferencing or e-mail, which could be unwieldy or exclusionary, successful virtual teams made extensive use of sophisticated online team rooms, where everyone could easily see the state of the work in progress, talk about the work in ongoing threaded discussions, and be reminded of decisions, rationales, and commitments. Differences were most effectively hashed out in tele-conferences, which team leaders also used to foster group identity and solidarity. When carefully managed in this way, the clash of perspectives led not to acrimony but, rather, to fundamental solutions, turning distance and diversity into competitive advantage. 相似文献
947.
Over the past decade, the distribution of household incomes has shifted so much that a much larger proportion of consumers now earn significantly higher-than-average incomes--while still falling short of being truly rich. As a result, what used to be a no-man's-land for new product introductions has in many categories become an extremely profitable "new middle ground." How can marketers capitalize on this new territory? The key, say the authors, is to rethink the positioning and design of offerings and the ways they can be brought to market. Take, for instance, how Procter & Gamble redefined the positioning map for tooth-whitening solutions. A decade ago, dental centers were popularizing expensive bleaching techniques that put the price of a professionally brightened smile in the 400 dollars range. At the low end, consumers also had the choice of whitening toothpastes that cost anywhere from 2 dollars to 8 dollars. P&G wisely positioned itself between the two ends, successfully targeting the new mass market with its 35 dollars Whitestrips. In product categories where it's clear the middle ground has already been populated, it's important for companies to design or redesign offerings to compete. An example is the Polo shirt. How do you sell a man yet another one after he's bought every color he wants? Add some features, and call it a golf shirt. Here, marketers have introduced designs based on the concept of "occasional use" in order to stand out. Finally, companies wishing to reach the "almost rich" can change how they go to market. Perhaps no mass retailer has made a stronger bid for the mass affluent than Target Stores, which has pioneered a focus the company itself characterizes as upscale discount. The strategy has made Target an everyday shopping phenomenon among well-heeled urbanites and prosperous professionals. 相似文献
948.
This paper reevaluates the Allen–Gale (2000) analysis of interbank deposits to explain financial contagion. This paper modifies the pecking order of asset liquidation developed in Allen–Gale, which is essential in fragility analysis. Furthermore, we also provide a claim structure called liquidity pool that can both achieve risk sharing and prevent financial contagion across regions when asymmetric information about bank assets is absent. This model can partly explain why bank panics reduced substantially after the founding of the Fed and the role of IMF in regional financial crises. 相似文献
949.
This paper covers the activities of the Economic Analysis Group (EAG), during 2003–2004. It describes the economic analysis undertaken by EAG in several important investigations, litigations, and administrative and appellate matters.The authors are, respectively, Deputy Assistant Attorney General for Economics, U.S. Department of Justice, Antitrust Division, and Economics Director of Enforcement, U.S. Department of Justice, Antitrust Division. The views contained herein are solely those of the authors and do not necessarily represent those of the U.S. Department of Justice. 相似文献
950.
Labor costs for two versus one full-time nurse manager were compared. Results revealed reductions in nursing costs per patient day. These results suggest that innovative models may hold promise as organizations struggle to retain nurses and decrease costs. 相似文献