全文获取类型
收费全文 | 638篇 |
免费 | 13篇 |
专业分类
财政金融 | 113篇 |
工业经济 | 28篇 |
计划管理 | 98篇 |
经济学 | 130篇 |
运输经济 | 1篇 |
旅游经济 | 1篇 |
贸易经济 | 204篇 |
农业经济 | 19篇 |
经济概况 | 46篇 |
邮电经济 | 11篇 |
出版年
2023年 | 2篇 |
2021年 | 4篇 |
2020年 | 8篇 |
2019年 | 8篇 |
2018年 | 16篇 |
2017年 | 12篇 |
2016年 | 18篇 |
2015年 | 17篇 |
2014年 | 17篇 |
2013年 | 40篇 |
2012年 | 39篇 |
2011年 | 36篇 |
2010年 | 30篇 |
2009年 | 42篇 |
2008年 | 23篇 |
2007年 | 28篇 |
2006年 | 22篇 |
2005年 | 21篇 |
2004年 | 14篇 |
2003年 | 14篇 |
2002年 | 14篇 |
2001年 | 18篇 |
2000年 | 4篇 |
1999年 | 13篇 |
1998年 | 11篇 |
1997年 | 11篇 |
1996年 | 10篇 |
1995年 | 9篇 |
1994年 | 6篇 |
1993年 | 6篇 |
1992年 | 8篇 |
1991年 | 11篇 |
1990年 | 7篇 |
1989年 | 6篇 |
1988年 | 11篇 |
1987年 | 10篇 |
1986年 | 7篇 |
1985年 | 13篇 |
1984年 | 9篇 |
1983年 | 7篇 |
1982年 | 12篇 |
1981年 | 8篇 |
1980年 | 3篇 |
1979年 | 3篇 |
1978年 | 3篇 |
1977年 | 2篇 |
1976年 | 4篇 |
1974年 | 2篇 |
1971年 | 2篇 |
1967年 | 2篇 |
排序方式: 共有651条查询结果,搜索用时 425 毫秒
21.
22.
This paper examines how alliance co-specialization and scope extension affect firm value at the time of alliance formation and termination, and whether value creation upon alliance formation also explains value creation upon termination. Building on the relational view of the firm, we develop predictions that are tested using event study methodology and data on code-sharing alliances formed, extended, and terminated between 1994 and 2008. The findings suggest that from a stock market perspective alliance formation and termination can be seen as two interrelated events and that it is difficult to reverse initial valuations past the alliance formation phase. They also suggest that the stock market reacts to alliance formation more critically than to post-formation decisions such as alliance scope extensions and terminations. 相似文献
23.
We use propensity score matching methods to quantify the effects of past self-employment experience on subsequent earnings in dependent employment using data on the population of Danish men observed between 1990 and 1996. Our results generally confirm existing studies in that we find that a spell of self-employment is associated with lower hourly wages compared to workers who were consecutively wage-employed. We also show, however, that this effect disappears—and even becomes positive in some settings—for formerly self-employed who find dependent employment in the same sector as their self-employment sector. Hence, the on average negative effect of self-employment is rather caused by sector switching than by the self-employment experience per se. Moreover, formerly self-employed who either enjoyed a high income or hired at least one worker during their self-employment spell receive wages in subsequent dependent employment that are at least as high as for individuals who have been consecutively wage-employed. 相似文献
24.
25.
26.
Biofortification of maize with provitamin A carotenoids is a new approach to the alleviation of vitamin A deficiencies in Africa. Unfortunately these varieties are yellow or orange, while consumers generally prefer white. Consumer willingness to pay for yellow and fortified maize was compared in experimental auctions in three regions in Kenya. The premium that consumers are willing pay for fortified maize (24%) was higher than the discount they require to buy yellow maize (11%), and in one zone consumers prefer yellow. Yellow color is, therefore, not an impossible obstacle for biofortified maize, although it would clearly be easier to introduce this maize first in regions where yellow maize is currently grown. 相似文献
27.
28.
The cultural theory pioneered by Dame Mary Douglas has been tested with a range of research methods, but it has not yet been made subject to a ‘structured observation’. This method has been developed in psychology and management studies, and is especially useful for testing cultural theory’s prediction that fatalistic, hierarchical, egalitarian, and individualistic ways of perceiving and justifying tend to emerge in group debates about pressing social and environmental issues. We present the results of a structured observation of this prediction. Groups of high school students (aged 17–19) were asked for their opinions concerning three to five ‘wicked’ (i.e., highly complex) problems, and to discuss how to resolve them. Each utterance was coded according to the rationalities proposed by cultural theory. The results confirm cultural theory’s hypothesis that all four specific ways of defining, perceiving and resolving a wicked problem emerge when a number of people debate such an issue. We also discuss how Douglas’ cultural theory can be further developed and tested. Finally, we use our study to outline how the method of structured observation can contribute to political culture research in general. 相似文献
29.
Research Summary: A learning‐by‐hiring approach is used to scrutinize scientists' mobility in relation to the recruiting firms' subsequent innovation output. Our starting point is that among firm hires, individuals with university research experience—hired from universities or firms—can be particularly valuable. However, conflicting institutional logics between academia and industry makes working with academic scientists challenging at times for firms. We suggest two solutions to this difficulty: hiring “ambidextrous” individuals with a mix of experience of university research and working for a technologically advanced firm, and a strong organizational research culture in the recruiting firm reflected by the presence of a scientist on the top management team. We track the mobility of R&D workers empirically using patent and linked employer‐employee data. Managerial Summary: An important way to make organizations more innovative is hiring individual researchers with the right types of skills and experience. We show that individuals with university research experience beyond their final degree are particularly likely to help boost firm‐level innovation output after hiring compared to R&D workers with other types of skills and experience. However, to obtain good returns to innovation from hiring such individuals, firms need a university research–friendly organizational culture when hiring individuals with university research experience, from either firms or academia. 相似文献
30.
This paper discusses the general characteristics of online markets from a competition theory perspective and the implications for competition policy. Three important Internet markets are analyzed in more detail: search engines, online auction platforms, and social networks. Given the high level of market concentration and the development of competition over time, we use our theoretical insights to examine whether (a) leading Internet platforms have non-temporary market power and, based on this analysis, (b) whether any specific market regulation beyond general competition law rules is warranted in these three online markets. 相似文献