全文获取类型
收费全文 | 17845篇 |
免费 | 418篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 3127篇 |
工业经济 | 1308篇 |
计划管理 | 3078篇 |
经济学 | 4055篇 |
综合类 | 207篇 |
运输经济 | 100篇 |
旅游经济 | 230篇 |
贸易经济 | 3137篇 |
农业经济 | 726篇 |
经济概况 | 2218篇 |
信息产业经济 | 6篇 |
邮电经济 | 72篇 |
出版年
2023年 | 91篇 |
2021年 | 194篇 |
2020年 | 190篇 |
2019年 | 290篇 |
2018年 | 491篇 |
2017年 | 518篇 |
2016年 | 518篇 |
2015年 | 234篇 |
2014年 | 358篇 |
2013年 | 1488篇 |
2012年 | 760篇 |
2011年 | 739篇 |
2010年 | 471篇 |
2009年 | 510篇 |
2008年 | 484篇 |
2007年 | 445篇 |
2006年 | 447篇 |
2005年 | 1225篇 |
2004年 | 744篇 |
2003年 | 431篇 |
2002年 | 330篇 |
2001年 | 330篇 |
2000年 | 350篇 |
1999年 | 286篇 |
1998年 | 308篇 |
1997年 | 269篇 |
1996年 | 278篇 |
1995年 | 251篇 |
1994年 | 213篇 |
1993年 | 254篇 |
1992年 | 248篇 |
1991年 | 255篇 |
1990年 | 242篇 |
1989年 | 201篇 |
1988年 | 177篇 |
1987年 | 185篇 |
1986年 | 201篇 |
1985年 | 265篇 |
1984年 | 235篇 |
1983年 | 208篇 |
1982年 | 181篇 |
1981年 | 199篇 |
1980年 | 189篇 |
1979年 | 180篇 |
1978年 | 163篇 |
1977年 | 120篇 |
1976年 | 123篇 |
1975年 | 116篇 |
1974年 | 90篇 |
1973年 | 109篇 |
排序方式: 共有10000条查询结果,搜索用时 140 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.
We present a longitudinal qualitative case study to elaborate on how a social venture forms reference points for social performance. Although organizations increasingly use various social performance targets to direct their operations, the scholarly knowledge on social performance reference points remains limited. We make use of the prior accounting literature and draw on the idea of compromising accounts to discuss how provisional and performative metrics can have a significant role in how organizations develop new ways to evaluate their social performance. Given that the social performance reference point criteria are ambiguous and the corresponding referents malleable, performative accounts are helpful as they can intervene in the organizational life by making particular things visible, providing space for interpretations, and facilitating discussion, thus creating temporary settlements and enabling opportunities for productive compromises between different organizational groups and evaluative principles. The recursive feedback loops between reference point referents, criteria and accounting artefacts help the organization to make sense of its own social performance and interpret the associated performance feedback, and thereby provide ground for organizational decisions on further action. Moreover, we discuss how imperfect accounts can be useful for social businesses in their pursuit of developing their activities and achieving social impact. 相似文献
4.
We study the effect of the educational diversity of managers on the performance of team‐managed mutual funds using a large sample of U.S. equity funds from 1994 to 2013. We consider diversity in terms of both final educational degree and field of educational specialisation. We find that, in general, both types of diversity have a positive impact on fund performance, and our results are robust over a wide range of performance metrics and changes in market conditions. 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.
7.
Audretsch David B. Link Albert N. 《The International Entrepreneurship and Management Journal》2019,15(1):195-208
A compelling body of research has found that investments in knowledge from other firms and universities spill over to enhance the performance of entrepreneurial firms. This literature has shown that firm performance is positively related to investments in new knowledge by other firms and research universities. This paper addresses a gap in the literature by positing that public sector knowledge is also conducive to enhancing performance by knowledge intensive entrepreneurial (KIE) firms. Our findings suggest that the public sector provides a fertile source of knowledge for enhancing KIE firm performance.
相似文献8.
Jorge Núñez Ferrer 《Intereconomics》2018,53(6):326-331
Institutions and the European Investment Bank are at the forefront of EU investment policy. Their role is expanding and it is now a widely-held position that an improvement in the economy will not eliminate the need for their intervention. The proposals for the 2021–2027 MFF launch more financial instruments and present ‘InvestEU’ as a larger more powerful version of the European Fund for Strategic Investments (EFSI). However, promotional banking is often misunderstood and so is the actual size of promotional banking in Europe in which InvestEU will operate. 相似文献
9.
Rasmus Kær Jørgensen Christian Igel 《International Journal of Intelligent Systems in Accounting, Finance & Management》2021,28(3):159-172
An important initial step in accounting is mapping financial transfers to the corresponding accounts. We devised machine-learning-based systems that automate this process. They use word embeddings with character-level features to process transaction texts. When considering 473 companies independently, our approach achieved an average top-1 accuracy of 80.50%, outperforming baselines that exclude the transaction texts or rely on a lexical bag-of-words text representation. We extended the approach to generalizes across companies and even across different corporate sectors. After standardization of the account structures and careful feature engineering, a single classifier trained on 44 companies from 28 sectors achieved a test accuracy of more than 80%. When trained on 43 companies and tested on the remaining one, the system achieved an average performance of 64.62%. This rate increased to nearly 70% when considering only the largest sector. 相似文献
10.
The joint implication of the consumption Euler equation and cointegration between income and consumption is that savings predict future income declines, the ‘saving for a rainy day’ hypothesis. The empirical relevance of this hypothesis plays a key role in discussions of fiscal policy multipliers, and it holds under the null that the permanent income hypothesis is true. We find little support for this hypothesis using time series data for the 100 largest US Metropolitan Statistical Areas for the period 1980q1–2015q4. Our approach is to test for cointegration and weak exogeneity between income and consumption, and by exploring the direction of Granger causality between the two time series. We find that income more often predicts consumption and saving than the converse. We also give evidence that house price changes played a role in US income and consumption dynamics, before, during and after the Great Recession. 相似文献