全文获取类型
收费全文 | 10817篇 |
免费 | 145篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 1604篇 |
工业经济 | 675篇 |
计划管理 | 1593篇 |
经济学 | 2412篇 |
综合类 | 374篇 |
运输经济 | 42篇 |
旅游经济 | 79篇 |
贸易经济 | 2216篇 |
农业经济 | 252篇 |
经济概况 | 1684篇 |
信息产业经济 | 3篇 |
邮电经济 | 29篇 |
出版年
2021年 | 39篇 |
2020年 | 78篇 |
2019年 | 121篇 |
2018年 | 820篇 |
2017年 | 802篇 |
2016年 | 509篇 |
2015年 | 81篇 |
2014年 | 174篇 |
2013年 | 610篇 |
2012年 | 293篇 |
2011年 | 835篇 |
2010年 | 734篇 |
2009年 | 657篇 |
2008年 | 641篇 |
2007年 | 770篇 |
2006年 | 136篇 |
2005年 | 206篇 |
2004年 | 246篇 |
2003年 | 290篇 |
2002年 | 163篇 |
2001年 | 140篇 |
2000年 | 125篇 |
1999年 | 92篇 |
1998年 | 105篇 |
1997年 | 79篇 |
1996年 | 85篇 |
1995年 | 95篇 |
1994年 | 64篇 |
1993年 | 91篇 |
1992年 | 82篇 |
1991年 | 92篇 |
1990年 | 74篇 |
1989年 | 81篇 |
1988年 | 71篇 |
1987年 | 72篇 |
1986年 | 79篇 |
1985年 | 86篇 |
1984年 | 96篇 |
1983年 | 70篇 |
1982年 | 70篇 |
1981年 | 69篇 |
1980年 | 82篇 |
1979年 | 66篇 |
1978年 | 47篇 |
1977年 | 50篇 |
1976年 | 40篇 |
1975年 | 54篇 |
1974年 | 35篇 |
1973年 | 42篇 |
1972年 | 34篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
We use a unique firm-level data set including 9000 companies from 26 European Union countries covering four different sectors to take a close look at the relationship between online exports and productivity. The online exporter productivity premium is estimated using different techniques (ordinary least squares, quantile regressions and robust estimation). Results consistently indicate that the estimated online exporter productivity premium is statistically different from zero, positive and significant from an economic point of view. European online exporters, according to these results, are approximately 2% more productive than non-online exporters. Productivity differences between firms could be related to variables that are not included in the empirical model. More research would be needed to address this issue in the future. 相似文献
2.
I. E. Ilina E. N. Zharova S. P. Burlankov 《Studies on Russian Economic Development》2018,29(2):207-213
This paper presents an approach to assessing the efficacy of public spending on research and development in state programs. At present, there is a need to develop a unified approach to the analysis and evaluation of the efficacy of such spending from the perspective of participants in state programs (federal executive bodies). The proposed approach does not allow evaluating the efficacy of public spending on the development of research areas assigned to the authors. 相似文献
3.
4.
Without guaranteed compensation, granted by the German Renewable Energy Sources Act (Erneuerbare Energien Gesetz/EEG), biogas plants compete with all other plant types on the market for electrical energy. However, exchange-based electricity products do not currently permit an economically viable operation of biogas plants owing to their cost situation. 相似文献
5.
Gregory Brown Robert Harris Wendy Hu Tim Jenkinson Steven N. Kaplan David T. Robinson 《Journal of Financial Economics》2021,139(2):561-577
Private equity performance, both for buyouts and venture capital, has been highly cyclical: periods of high fundraising have been followed by periods of low performance. Despite this seemingly predictable variation, we find modest gains, at best, to pursuing realistic, investable strategies that time capital commitments to private equity. This occurs, in part, because investors can only time their commitments to funds; they cannot time when commitments are called or when investments are exited. There is a high degree of time-series correlation in net cash flows even across commitment strategies that allocate capital in a very different manner over time. 相似文献
6.
Zhiming Cheng Wei Guo Mathew Hayward Russell Smyth Haining Wang 《Journal of Business Venturing》2021,36(1):106063
Studies on the determinants of entrepreneurship emphasize that challenged adults tend to become entrepreneurs. However, research has not addressed the childhood origins surrounding the propensity for entrepreneurship. This article links childhood adversity to the propensity of individuals to become migrant entrepreneurs later in life. We test hypotheses derived from this theory in the context of whether, and when, children who survived the Great Chinese Famine of 1959–1961 became migrant entrepreneurs. Results strongly indicate that those who survived greater hardship during the Famine are more likely to become entrepreneurs, especially when they were younger during the famine years. We also find that being younger at the time of migration increased the likelihood of becoming entrepreneurs in their new locale. Overall, this study casts light on why, how and when childhood adversity shapes the propensity for entrepreneurship. 相似文献
7.
This paper examines the international trade of a variety of genetically modified (GM) food products over a 27-year period (1984–2011) with data from the United Nations using the tools of social network analysis. The results indicate that each of the different crops have a distinctive pattern of trade that has changed over time due to a number of different factors. Also, trade in agricultural commodities became more diversified over time, dominated less by the United States and other nations central in the trade networks and trade in the individual GM crops was stable over time. Countries maintained their trading partners for specific crops, despite the adoption of the genetically modified varieties. The economic implications of these results are discussed for specific countries. 相似文献
8.
Shashank Rao Allan Gulley Matthew Russell Justin Patton 《Journal of Business Logistics》2021,42(1):88-100
The ability to look into the supply chain has long enticed SCM scholars and practitioners. The possibilities created by such visibility are endless—from risk reduction and continuity planning to inventory management and cost reduction, nothing is off the table when end‐to‐end visibility is a possibility. Because of such enticements, there is usually much buzz in the industry every time a new technology that promises visibility and transparency is brought forward. Yet, years later, stories sometimes emerge that said technologies either failed to deliver or were not everything they were made out to be. Blockchain is yet another emerging technology in this space. Some consultants promise that it will be the final answer to the transparency and visibility woes that companies currently face. Yet, there is little empirical investigation regarding how the technology may benefit adopters, what the bottlenecks may be, and to what extent it may be able to deliver on these promises, without massive system‐wide upgrades of extant hardware and computing prowess. The current study takes a step in this direction by investigating a blockchain‐driven proof of concept across an industry consortium to identify promises, possibilities, and challenges of blockchain. 相似文献
9.
Prior literature examined reciprocity in the context of value creation. However, research has yet to examine whether reciprocity exists in value sharing. To address this gap, the authors examine retailer’s reciprocal value sharing with its manufacturer in relation to new product introductions. The authors test, via a survey of retail managers, whether reciprocal value sharing is influenced by an interaction of manufacturer’s prior new product success with innovativeness of a manufacturer’s products and the frequency of new product introduction. The results indicate that a retailer’s reciprocal value sharing is greater when the manufacturer historically launched successful new products, and that this effect is decreased with the innovativeness of a manufacturer’s products but increased with the frequency of new product introduction. 相似文献
10.