全文获取类型
收费全文 | 12125篇 |
免费 | 1166篇 |
国内免费 | 58篇 |
专业分类
财政金融 | 1766篇 |
工业经济 | 765篇 |
计划管理 | 2565篇 |
经济学 | 2402篇 |
综合类 | 1009篇 |
运输经济 | 207篇 |
旅游经济 | 169篇 |
贸易经济 | 2202篇 |
农业经济 | 637篇 |
经济概况 | 1620篇 |
信息产业经济 | 2篇 |
邮电经济 | 5篇 |
出版年
2024年 | 17篇 |
2023年 | 66篇 |
2022年 | 136篇 |
2021年 | 300篇 |
2020年 | 358篇 |
2019年 | 612篇 |
2018年 | 364篇 |
2017年 | 596篇 |
2016年 | 514篇 |
2015年 | 608篇 |
2014年 | 689篇 |
2013年 | 1117篇 |
2012年 | 967篇 |
2011年 | 1121篇 |
2010年 | 1012篇 |
2009年 | 759篇 |
2008年 | 782篇 |
2007年 | 675篇 |
2006年 | 744篇 |
2005年 | 605篇 |
2004年 | 268篇 |
2003年 | 255篇 |
2002年 | 249篇 |
2001年 | 220篇 |
2000年 | 125篇 |
1999年 | 43篇 |
1998年 | 22篇 |
1997年 | 14篇 |
1996年 | 15篇 |
1995年 | 15篇 |
1994年 | 11篇 |
1993年 | 17篇 |
1992年 | 5篇 |
1991年 | 6篇 |
1989年 | 1篇 |
1988年 | 7篇 |
1987年 | 6篇 |
1986年 | 2篇 |
1985年 | 3篇 |
1984年 | 7篇 |
1983年 | 2篇 |
1982年 | 1篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1976年 | 1篇 |
1974年 | 1篇 |
1973年 | 1篇 |
1971年 | 2篇 |
1970年 | 1篇 |
1969年 | 3篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
971.
Pablo del Río Cristina Peñasco Desiderio Romero‐Jordán 《Business Strategy and the Environment》2015,24(6):361-385
This paper analyzes the main determinants influencing environmental innovators (i.e. firms developing or adopting environmental innovations) in Spain with respect to non‐environmental innovators. Similarly to other contributions in the literature, our results show that Spanish environmental innovators respond to regulatory stimulus in the form of demand‐pull and technology‐push instruments. They have a high internal technological capability and combine internal and external information sources, mostly in cooperation with knowledge institutions. Environmental innovators are more concentrated in mature, traditionally highly polluting sectors, but new firms are not more environmentally innovative than incumbents. Most importantly, in contrast to other environmental innovation studies, mostly carried out in a German context, we have not found evidence of a market pull from either the domestic or international markets. Furthermore, cost savings are not found to be a distinctive driver for environmental innovators. These differential results are possibly related to the special features of Spain regarding its national innovation system and the degree of stringency of environmental regulation and environmental consciousness of its consumers. Copyright © 2013 John Wiley & Sons, Ltd and ERP Environment. 相似文献
972.
María del Mar Miras‐Rodríguez Amalia Carrasco‐Gallego Bernabé Escobar‐Pérez 《Business Strategy and the Environment》2015,24(8):819-835
Even though electrical companies attain a top ranking in the publication of CSR reports, they are often accused of 'green‐washing' due to their bad environmental reputation. The current economic crisis is testing their real CSR commitment more than ever, especially when this goes beyond its economic consequences. Based on a worldwide sample of electrical companies, we are going to study why companies are being socially responsible. We wish to know if it is due to the impact on the firms' performance or whether there are other motives (legitimation, improving their reputation) that lead companies to carry out these practices. We will also consider if it changes across the kind of CSR action considered. The results show that there is an economic justification beyond the socially responsible behaviour of the electrical companies. Additionally, most kinds of CSR action (community, diversity, corporate governance, product responsibility) are also carried out looking for economic rewards. However, the CSR actions oriented to the environment are mainly motivated by their need to improve their image and reverse their negative impact. Copyright © 2014 John Wiley & Sons, Ltd and ERP Environment 相似文献
973.
974.
975.
This study summarizes the main conclusions from a systematic review of the empirical literature regarding the impact on firms of the use of knowledge external sources (universities, research institutes and knowledge intensive business services). With the aim to organize the literature, we classify the different works according to the research question addressed: (i) which firms use knowledge external sources?; (ii) Do firms using knowledge external sources achieve better results?; And (iii) which firms benefit the most from using knowledge external sources? Stylized facts are that larger, more R&D intensive and high tech firms are more likely to use knowledge external sources and that use of knowledge external sources is associated to firms higher technical results. Less attention has been paid to the third question and evidence is not conclusive. Several recommendations for future research emerge. First, to take in greater consideration methodological issues so that potential biases in the results caused by sample selection and endogeneity are handled properly. Second, to pay more attention to heterogeneous outcomes. Third, to use continuous indicators of depth and breadth of links allowing for non‐linear relationships and fourth, to extend evidence for developing countries and service industries. 相似文献
976.
Brandon L. Grimm Shinobu Watanabe‐Galloway Denise H. Britigan Alice M. Schumaker 《Journal of Leadership Studies》2015,8(4):19-26
Leadership programs in public health have been declining in numbers since 2012. The decline in training programs could be due to the lack of outcome‐based results and the lack of a manageable set of standardized skills needed for public health leadership. A comprehensive study was completed in two phases to determine if the current model of public health leadership institutes is effective at generating outcome‐based results. The following paper will focus on the first phase of the study. The first phase included a qualitative analysis to determine the domains, definitions, and skills needed to lead. An analysis of the skills, domains, definitions, and traits included in five established and commonly used leadership models/theories in public health leadership development (Transformational, Servant, Appreciative, Collaborative, and Emotional Intelligence leadership) plus the National Public Health Leadership Development Network (NLN) Leadership for Community Health, Safety & Resilience Competency Framework was completed. Of the 161 different skills, definitions, traits, and/or competencies from the five leadership models and the NLN competency framework, 123 were determined to be related to one of six domains needed for leadership and were defined into 21 skills. The findings could lead to more uniformity in public health leadership development and evaluation. 相似文献
977.
This study attempts to apply real options and expand the model designed by Lin and Huang [Lin, T.T., Huang, Y.T.: J. Technol.
Manage. 8(3), 59–78 (2003)], which helps venture capital (VC) companies to optimize project exit decisions. The expected discounted
factor and a jump-diffusion process combine to assess the value of a start-up company, and determine the threshold of the
exit timing of liquidation or convertibility for establishing the optimal disinvestment evaluation model for VC companies.
When the project value is below VL*V_L^\ast, the VC company carries out liquidation, but when the project value exceeds VC*V_C^\ast, the VC company performs convertibility. The project value is ranging between (VL *,VC*)\left({V_L ^\ast,V_C^\ast}\right), and the best choice is holding the decision and waiting to carry out the rights of liquidation and convertibility next time.
Besides, this work attempts to identify the expected discounted time in terms of the investment time for VC companies. 相似文献
978.
This study investigates the effects of price limits on investment performance of contrarian trading strategies in Taiwan’s stock market over the period 1997 to 2006. All contrarian strategies in intraday limit-hit stocks lead to superior returns relative to the benchmark index return, and the findings support the overreaction effect. Also, there is evidence of delayed overreaction reflected by price continuations for the overnight period and price reversals for the subsequent trading day. Moreover, investment performance of contrarian strategies is related to firm characteristics where investors tend to overreact more in small-size, high-turnover, and non-high-tech stocks. Finally, price overreaction is strong for up-hit stocks in the aftermath of catastrophic events. If overreaction exists, price-limit regulation designed to cool off investors and reduce price volatility may not be effective. 相似文献
979.
980.
从战略的角度,将资本结构与公司所处的环境特征联系起来,选取了1997年以前在我国沪、深证券交易的上市的309家公司,获得1997~2006年的数据,运用多因素回归和单因素回归模型检验了环境动态、资本结构和经营业绩之间的关系,为我国上市公司资本结构决策制定的全面性和合理性提供了实证依据。 相似文献