全文获取类型
收费全文 | 9142篇 |
免费 | 713篇 |
国内免费 | 24篇 |
专业分类
财政金融 | 1453篇 |
工业经济 | 386篇 |
计划管理 | 1508篇 |
经济学 | 4103篇 |
综合类 | 236篇 |
运输经济 | 29篇 |
旅游经济 | 19篇 |
贸易经济 | 676篇 |
农业经济 | 586篇 |
经济概况 | 883篇 |
出版年
2024年 | 10篇 |
2023年 | 135篇 |
2022年 | 85篇 |
2021年 | 158篇 |
2020年 | 358篇 |
2019年 | 421篇 |
2018年 | 250篇 |
2017年 | 350篇 |
2016年 | 277篇 |
2015年 | 316篇 |
2014年 | 607篇 |
2013年 | 808篇 |
2012年 | 659篇 |
2011年 | 945篇 |
2010年 | 677篇 |
2009年 | 625篇 |
2008年 | 602篇 |
2007年 | 648篇 |
2006年 | 473篇 |
2005年 | 329篇 |
2004年 | 232篇 |
2003年 | 202篇 |
2002年 | 98篇 |
2001年 | 56篇 |
2000年 | 57篇 |
1999年 | 79篇 |
1998年 | 89篇 |
1997年 | 85篇 |
1996年 | 77篇 |
1995年 | 29篇 |
1994年 | 33篇 |
1993年 | 15篇 |
1992年 | 3篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1988年 | 1篇 |
1986年 | 1篇 |
1985年 | 17篇 |
1984年 | 19篇 |
1983年 | 20篇 |
1982年 | 15篇 |
1981年 | 1篇 |
1980年 | 5篇 |
1979年 | 6篇 |
1978年 | 3篇 |
1975年 | 1篇 |
排序方式: 共有9879条查询结果,搜索用时 15 毫秒
101.
Andrea Bonfiglio Roberto Henke Fabio Pierangeli Maria Rosaria Pupo D'Andrea 《Agricultural Economics》2020,51(2):305-320
The objective of this article is twofold: first, investigating the relationship between technical efficiency and decoupled direct payments of a sample of Italian farms prior to the application of the 2014–2020 Common Agricultural Policy reform; second, evaluating possible implications of alternative scenarios about distribution of direct payments on technical efficiency. To these aims, a stochastic frontier analysis is adopted. Results indicate that direct payments produce significant effects on technical efficiency in specialized farms, which received higher levels of support. However, effects are contrasting. Moreover, results show that redistribution of policy subsidies may negatively impact on technical efficiency to an extent depending upon the criterion of redistribution applied. Finally, some policy suggestions are given. 相似文献
102.
Aaron Graham 《Australian economic history review》2020,60(3):322-345
Nearly 260 companies were founded in and for the Australasian colonies between 1790 and 1860. A quantitative survey suggests that the patterns of incorporation mainly reflected ‘functionalist’ economic factors rather than ‘autonomous’ legal conditions, though the changing nature of company law did influence the various forms that incorporation took. In some sectors, outside factors and even historical accidents also pushed patterns of incorporation along distinct lines. The result was a tradition of adapting legal powers of incorporation to local needs which persisted beyond the introduction of modern company acts to the region in the 1860s and therefore shaped the subsequent evolution of the company in Australia and New Zealand. 相似文献
103.
Mauro Caminati 《Metroeconomica》2021,72(1):57-81
A Cournot collaboration game is complemented with the hypothesis that the cost of R&D collaboration depends on firm’s directed knowledge distance with respect to potential R&D partners. The further hypothesis that directed distance may be non‐uniform and pair‐wise asymmetric reconciles theoretical predictions with qualitative evidence about concentration and multiplicity of components in industrial R&D networks. The welfare properties of sparse stable networks are also affected. 相似文献
104.
军民科技协同创新能力是国家科技整体竞争力的重要组成部分。近年来,军民科技协同创新取得显著成效,但也存在诸多问题,严重阻碍了军民科技协同创新深入发展。因此,迫切需要对军民科技协同创新机制进行系统性设计。基于集成动员理论的核心思想,借鉴其组织模式和运行机制理论,针对军民科技协同创新机制不明晰等问题,对军民科技协同创新机制进行系统性设计,提出在军民科技协同创新管理机构的引导下,将军民科技协同创新的各种资源要素和功能集成于军民科技协同创新服务平台,为军民科技协同创新流程和成果转化流程两大板块提供相关服务,并构建相关运行保障机制,进而实现军民科技协同创新集成化、敏捷化、模块化、高效化管理,进一步完善军民科技协同创新管理体系。 相似文献
105.
A number of empirical studies document that people tend to become more risk averse as they get older. But other studies find only little evidence that age matters for financial risk attitudes. This prompts a call for revisiting the relationship between age and risk attitude to better support policy recommendations. The current paper contributes to this effort by utilising large-scale population data to conduct a dynamic panel analysis. Care is taken to avoid the problem of endogeneity of lagged risk attitude in modelling its effects. Analysis reveals that individuals' past risk attitude has a positive effect on their current risk attitude. However, there is only little evidence that risk attitude and age are systematically related. Our results shed some light on the previous contradictory empirical findings in the literature and suggest that past risk attitude is potentially of greater relevance than chronological age in determining current risk attitude. 相似文献
106.
《Socio》2020
Although significant progress has been made in China's basic research in recent years, there remains a wide gap between research in China and that from developed countries. How to optimize the allocative efficiency of research resources is of great importance for increasing research output. In this paper, using the fixed effect stochastic frontier model based on the translog production function, we estimate output and substitution elasticities of research and development (R&D) inputs at universities in China's provincial level during 2009–2016. We find that the R&D technical efficiency of China's universities, after a rapid growth, has tended to become relatively stable. Improvements of internationalization degree and exogenous R&D capabilities are conducive to promoting R&D technical efficiency, whereas expenditures from government grants inhibit the promotion of R&D technical efficiency; the effects of R&D capital deepening and internet penetration are not evident. The output elasticity of R&D capital is much higher than that of R&D personnel, suggesting that R&D capital is the main driving force of research output. The substitution elasticity between R&D capital and personnel has experienced a change from substitution to complementary since 2014. To realize sustained growth of research output, we should increase R&D input with positive output elasticity or reduce R&D input with negative output elasticity, making the necessary trade-offs according to the substitution relationship between the two R&D inputs. 相似文献
107.
《Socio》2020
Based on primary data of 453 drinkers in Thailand, this study investigates the impact of pre-commitment on alcohol consumption. It exploits the quasi-experimental nature of a social marketing campaign in Thailand implemented in 2014, where all drinkers were able to publicly pledge temporary alcohol abstention, and some but not all drinkers were provided with community-based health promotion interventions conducted by local residents. This study argues that the campaign had a pre-commitment device implicitly integrated into it; failures to follow through with the commitment were associated with mental costs of social embarrassment and weaker relationships with one's local social networks. Using a joint estimation method where the decision to pre-commit is explicitly endogenized, this study suggests that pre-commitment is effective in increasing the probabilities of temporary alcohol abstention and reduction. 相似文献
108.
《Socio》2020
The literature on broadband policies has been focusing on the possible role of mobile broadband as a means for addressing geographical digital divide in areas with no or inadequate fixed broadband infrastructure coverage. Broadband plans designed by most of the industrialized countries take the substitutability between fixed and mobile technologies for granted, with restrictions essentially relating only to bandwidth performance. We explore the determinants of individuals' private access (away from work) to the Internet with the smartphone through a mobile broadband connection, focusing on the role played by Internet uses and taking into account the availability of a fixed broadband connection at home. The results of our econometric exercise, carried out on microdata referred to Italian individuals, provide original and interesting evidence: a complementarity effect between mobile and fixed broadband is found for browsing, video streaming, gaming and cloud services; a substitution effect emerges for social networking and music streaming. Such increasing complexity of individuals’ broadband usage patterns should be acknowledged in the way broadband coverage is mapped and policies designed, adopting a more ecosystem-oriented approach which integrates supply- and demand-side features. A first step in this direction is the inclusion of some, so far neglected, key-attributes of the demand (data traffic allowance, latency, ease of interconnection with Internet capable devices) among the relevant dimensions of policy design. 相似文献
109.
《Socio》2020
This paper has explored patients' propensity to consume private healthcare services. We based our analysis on the typical tangible and intangible (for instance, responsiveness, reliability, assurance and staff empathy) domains of the SERVQUAL and SERVPERF methods. These variables may influence patients' decision-making when they choose between the public and private sectors. We combined factor analysis (to obtain a set of latent factors related to perceived quality) and a partial proportional ordered logit model to estimate the probability that a patient would access private healthcare services. To test the main hypotheses, we used data from a stratified sample in Sardinia, a peripheral region of Italy. Findings revealed that private and public healthcare are substitutes, especially for primary/specialised services. Patients who used public healthcare frequently and had a low income were unlikely to change to private healthcare or to recommend private services. ‘Responsiveness’ and perceptions on ‘tangibles’ were key in determining the probability that a patient would choose and recommend private services. This paper offers a multifaceted framework that can be used in future research to generalise these findings, especially in insular regions that are constrained by mobility. 相似文献
110.