全文获取类型
收费全文 | 13578篇 |
免费 | 238篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 2127篇 |
工业经济 | 830篇 |
计划管理 | 2054篇 |
经济学 | 3033篇 |
综合类 | 401篇 |
运输经济 | 43篇 |
旅游经济 | 95篇 |
贸易经济 | 2630篇 |
农业经济 | 405篇 |
经济概况 | 2166篇 |
信息产业经济 | 3篇 |
邮电经济 | 30篇 |
出版年
2023年 | 51篇 |
2021年 | 56篇 |
2020年 | 109篇 |
2019年 | 157篇 |
2018年 | 879篇 |
2017年 | 873篇 |
2016年 | 559篇 |
2015年 | 135篇 |
2014年 | 261篇 |
2013年 | 884篇 |
2012年 | 397篇 |
2011年 | 905篇 |
2010年 | 824篇 |
2009年 | 766篇 |
2008年 | 726篇 |
2007年 | 863篇 |
2006年 | 220篇 |
2005年 | 252篇 |
2004年 | 310篇 |
2003年 | 344篇 |
2002年 | 213篇 |
2001年 | 169篇 |
2000年 | 179篇 |
1999年 | 129篇 |
1998年 | 162篇 |
1997年 | 102篇 |
1996年 | 135篇 |
1995年 | 126篇 |
1994年 | 107篇 |
1993年 | 130篇 |
1992年 | 126篇 |
1991年 | 128篇 |
1990年 | 124篇 |
1989年 | 102篇 |
1988年 | 96篇 |
1987年 | 108篇 |
1986年 | 114篇 |
1985年 | 134篇 |
1984年 | 140篇 |
1983年 | 98篇 |
1982年 | 112篇 |
1981年 | 110篇 |
1980年 | 115篇 |
1979年 | 106篇 |
1978年 | 91篇 |
1977年 | 95篇 |
1976年 | 81篇 |
1975年 | 77篇 |
1974年 | 55篇 |
1973年 | 55篇 |
排序方式: 共有10000条查询结果,搜索用时 216 毫秒
11.
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
12.
Various aspects of sustainable development and quality of life are considered, including the impact of standardization. Particular attention is paid to the study of the role played by standardization in improving environmental protection. In this connection the significance of standardization is shown as a factor of improving the technological potential of an enterprise and the quality of life. Various approaches to methods for assessing the effective impact of standardization on the quality of life are analyzed. 相似文献
13.
The general consensus in the volatility forecasting literature is that high-frequency volatility models outperform low-frequency volatility models. However, such a conclusion is reached when low-frequency volatility models are estimated from daily returns. Instead, we study this question considering daily, low-frequency volatility estimators based on open, high, low, and close daily prices. Our data sample consists of 18 stock market indices. We find that high-frequency volatility models tend to outperform low-frequency volatility models only for short-term forecasts. As the forecast horizon increases (up to one month), the difference in forecast accuracy becomes statistically indistinguishable for most market indices. To evaluate the practical implications of our results, we study a simple asset allocation problem. The results reveal that asset allocation based on high-frequency volatility model forecasts does not outperform asset allocation based on low-frequency volatility model forecasts. 相似文献
14.
This study investigates the importance of mindfulness‐based organization systems and policies on the organization's continuous efforts to become a greener company. The study is devised as a pooled cross‐sectional time series analysis of productivity in energy consumption, water utilization, and waste generation and recycling of U.S. companies. The data set taken from U.S. Newsweek 500 recorded 600 companies dispersed into 63 industries during the period of 2012–2014 and provided 1,498 company–industry–year observations. The study found that systems and policies (e.g., deployment of third‐party auditors for its environmental metrics report; linkage of the remuneration of company's senior executive team with the achievement of environmental performance targets; and establishment of a committee at the Board of Directors' level whose mandate includes sustainability of the company in environment‐ and resource‐related matters) connect the company's mindfulness to its effort in improving the environmental quality through the company's productivity in energy consumption, water utilization, and waste generation and recycling. The relationships are positive and significant. Also, systems and policies serve as a motivator for the firm to continue to improve upon the current achievements. The study emphasizes the importance of translating organizational and individual mindfulness into organization policies and systems in order to motivate the organization to continuously improve its productivity in energy consumption, water utilization, and waste generation and recycling leading to improvements in environmental quality. 相似文献
15.
The study reported in this paper investigated the determinants of fair trade (FT) product purchase intention among Dutch consumers according to the extended Theory of Planned Behaviour and determined whether the effects of those determinants differ between male and female consumers. To test the various research hypotheses, an online survey with 499 respondents from a Dutch research panel was employed. Results of the multi-group analysis using a structural equation modelling approach reveal that FT product purchase intention of both male and female consumers are predicated on moral obligation and self-identity. The impact of subjective norm on purchase intention is statistically significant for male consumers only. Analyses reveal that, indeed, the impact of subjective norm on FT product purchase intention is moderated by consumers’ gender. 相似文献
16.
Gary V. Engelhardt Michael D. Eriksen Nadia Greenhalgh‐Stanley 《Real Estate Economics》2019,47(4):1055-1088
We examine the extent to which parents use housing and shared living arrangements as a form of risk‐sharing for their adult children, using detailed data on children and parents in the Health and Retirement Study for 1998–2012. On average, a young man moving from full‐time to nonemployment raises the likelihood of coresiding with a parent by 1.5 percentage points; moving from full‐time employment to being part‐time employed raises the likelihood of coresiding with a parent by 2 percentage points. The implied elasticity of parental coresidence with respect to the son's income is ‐1.1; for daughters, the elasticity is ‐0.5. 相似文献
17.
18.
The performance of service industries in Canada has been lower than that of good industries over the last four decades, with noticeable exceptions such as for railways and telecommunication carriers. Service industries were less economically (and technically) efficient in that they generated less output value (quantity) per hour worked (level and growth) or per combined unit of labour and capital (multifactor productivity growth) than good industries. The relative output price of services declined slightly over time compared with goods. At the disaggregated level, changing relative output prices were substantial and proved to be an important factor explaining the relative satisfactory economic performance of many service industries despite their low technical performance. Nevertheless, the output share of service industries increased over that period, sustained, mainly, by the growing recourse of all firms to outsourcing of services. 相似文献
19.
Eric F. Parkinson 《International Journal of Technology and Design Education》2004,14(3):219-243
Construction kits have played a significant part in nurturing the growth and development of the minds and manipulation-based
skills of children (and adults) in formal and non-formal education settings. These kits have origins rooted in the representation
of the built world and now have a diversity of form and function, including technical versions with moving parts. This article
examines some of the historically based ideas that lie behind the role that kits may have in terms of physical modelling.
The article traces the transformation of kits from simple bricks and blocks into more complicated pieces for space-filling
and achieving the transfer of forces and motion. This transformation occurred during the Victorian era when the influence
of the ideas of educationalists and, perhaps rather strangely, exponents of early aviation, played major roles in determining
the diversity of forms of construction kit and modelled possibilities that are now to be seen in classrooms and homes. The
article ends with a review of some of the lessons from the past and present that will need to be considered in relation to
concrete modelling in schools for the future.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
20.
Price V. Fishback Shawn Kantor John Joseph Wallis 《Explorations in Economic History》2003,40(3):278-307
We examine the importance of Roosevelt’s “relief, recovery, and reform” motives to the distribution of New Deal funds across over 3000 US counties, program by program. The major relief programs most closely followed Roosevelt’s three Rs. Other programs were tilted more in favor of areas with higher incomes. For all programs spending for political advantage in upcoming elections was a significant factor. Roosevelt’s successful reelections were based on developing specific programs for a broad range of constituents, delivering on his stated goals, but also spending more at the margin for political purposes. 相似文献