全文获取类型
收费全文 | 136415篇 |
免费 | 3813篇 |
国内免费 | 2篇 |
专业分类
财政金融 | 25761篇 |
工业经济 | 11575篇 |
计划管理 | 21694篇 |
经济学 | 29274篇 |
综合类 | 1468篇 |
运输经济 | 956篇 |
旅游经济 | 2483篇 |
贸易经济 | 23511篇 |
农业经济 | 6144篇 |
经济概况 | 17115篇 |
信息产业经济 | 8篇 |
邮电经济 | 241篇 |
出版年
2021年 | 829篇 |
2020年 | 1611篇 |
2019年 | 2376篇 |
2018年 | 2366篇 |
2017年 | 2533篇 |
2016年 | 2727篇 |
2015年 | 2074篇 |
2014年 | 3384篇 |
2013年 | 15209篇 |
2012年 | 4193篇 |
2011年 | 4221篇 |
2010年 | 3745篇 |
2009年 | 4344篇 |
2008年 | 3931篇 |
2007年 | 3281篇 |
2006年 | 3578篇 |
2005年 | 3562篇 |
2004年 | 3129篇 |
2003年 | 2894篇 |
2002年 | 2866篇 |
2001年 | 2622篇 |
2000年 | 2567篇 |
1999年 | 2467篇 |
1998年 | 2292篇 |
1997年 | 2355篇 |
1996年 | 2225篇 |
1995年 | 2015篇 |
1994年 | 2030篇 |
1993年 | 2023篇 |
1992年 | 2075篇 |
1991年 | 1961篇 |
1990年 | 1831篇 |
1989年 | 1680篇 |
1988年 | 1626篇 |
1987年 | 1624篇 |
1986年 | 1717篇 |
1985年 | 2474篇 |
1984年 | 2332篇 |
1983年 | 2138篇 |
1982年 | 1993篇 |
1981年 | 1930篇 |
1980年 | 1916篇 |
1979年 | 1829篇 |
1978年 | 1655篇 |
1977年 | 1635篇 |
1976年 | 1386篇 |
1975年 | 1284篇 |
1974年 | 1188篇 |
1973年 | 1184篇 |
1972年 | 896篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
971.
The fortunes of the oil refining industry have historically been tied to the political process. In periods of high gasoline prices public outcry increases pressure on the political process to increase regulation, taxation, and other costs on the industry. This study explores the relationship of gasoline prices and oil firm earning with accounting earnings management of oil firms. Findings indicate that firms make accounting changes and discretionary accruals to decrease (increase) earnings in periods when gasoline prices and oil firm earnings are rising (falling). 相似文献
972.
973.
974.
975.
976.
The first objective of this article is to clarify which model best captures the structure and trend of the influence of social origin on children's education. The second objective is to analyse how general conclusions on historical trends in educational reproduction change if we add mother's status background to the model. Six contrasting hypotheses are derived fromthe body of literature dealing with models on families' socioeconomic status. All hypotheses are translated into empirical models and their explained variance is compared. A pooled data set is used that contains data from the Netherlands, West Germany, and the USA. The Modified Dominance Model, that distinguishes the influence of the highest from thelowest status parent, has the best model fit. Regarding the second objective we see that adding the mother's influence to that of the father's does not change general conclusions on trends in educational reproduction. Over time the influence of both parents decreases continuously. However, the influence of the mother's education and occupational status on children's educational attainment is substantive. 相似文献
977.
Mark A. Lutz 《Forum for Social Economics》1993,23(1):1-12
Address delivered at a session on April 2, 1993 at the Midwest regional meetings of the Association for Social Economics,
Indianapolis, IN. 相似文献
978.
The paper hypothesizes that diversification by firms based in the pharmaceutical industry during the 1977-86 time period was primarily undertaken to reduce the risks associated with being dependent upon a technologically dynamic environment. Consistent with this non-efficiency motive for diversification, declining economic performance is predicted. A longitudinal empirical analysis provides support for these propositions. 相似文献
979.
980.
Nicholas C. Georgantzas 《Managerial and Decision Economics》1991,12(4):281-293
To compete effectively, multi-national enterprises (MNEs) must establish market presence in their global rivals' home courts and/or profit sanctuaries. Technology transfer is often used as a means toward that end. The technology adoption decisions of an aggressor MNE and a defender MNE are investigated in a model that features indirect moves and changes in strategy through technology transfer. Each firm may adopt a strategy that incorporates the transfer of high technology or appropriate technology. The strategic decision situation is modelled as a closed-loop sequential equilibrium in discrete time. In contrast to results in the technology adoption literature, the aggressor MNE may successfully transfer technology first, to be imitated later by the defender MNE. This and several other scenarios emerge from the model which, by incorporating the cost of social adjustment and risks involved in technology transfer, ties technology to the competitive interaction of MNEs and specifies conditions for creating competitive advantage through technology, both locally and worldwide. 相似文献