首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   2940篇
  免费   106篇
  国内免费   43篇
财政金融   180篇
工业经济   136篇
计划管理   711篇
经济学   479篇
综合类   469篇
运输经济   27篇
旅游经济   88篇
贸易经济   479篇
农业经济   155篇
经济概况   357篇
信息产业经济   5篇
邮电经济   3篇
  2023年   41篇
  2022年   27篇
  2021年   33篇
  2020年   80篇
  2019年   52篇
  2018年   52篇
  2017年   70篇
  2016年   71篇
  2015年   67篇
  2014年   198篇
  2013年   277篇
  2012年   212篇
  2011年   323篇
  2010年   245篇
  2009年   201篇
  2008年   253篇
  2007年   199篇
  2006年   182篇
  2005年   121篇
  2004年   81篇
  2003年   55篇
  2002年   52篇
  2001年   30篇
  2000年   32篇
  1999年   24篇
  1998年   11篇
  1997年   10篇
  1996年   12篇
  1995年   20篇
  1994年   13篇
  1993年   16篇
  1992年   11篇
  1991年   3篇
  1990年   2篇
  1985年   4篇
  1984年   2篇
  1983年   4篇
  1982年   1篇
  1981年   1篇
  1979年   1篇
排序方式: 共有3089条查询结果,搜索用时 15 毫秒
61.
The present inquiry lays a groundwork for the analysis of the net greenhouse gas (GHG) footprint of oil in the oil-abundant settings. To address the research question, the study puts forward a three-sector decision model, which provides a common ground for the assessment of the interaction of the structuralist and institutional factors influencing environmental pollution in the oil-reliant economies. The study shows that fossil-fuel abundance triggers forces, which induce diametrically opposed effects concerning atmospheric pollution. These are the rising carbon-intensive oil extraction and processing and fossil-fueled power generation versus shrinkage of the carbon-intensive manufacturing and growth of the low-carbon tertiarization. The theoretical analysis enables compartmentalization of the essential factors, which determine GHG emissions in the respective countries. To assess the significance of the proposed theoretical framework, the study employs multivariate panel co-integration techniques and two-stage fixed effects estimations for a dataset of 38 oil-producing countries for the time period between 1960 and 2018. In contrast to the existing literature, this study drives apart from the black box approaches that employ just one omnibus variable, per capita income.  相似文献   
62.
We examine the effect of simultaneous price changes on the total demand for a group of goods, which we call a compound commodity. Specifically, we consider unit and proportional cost components (e.g., taxes, transportation costs) imposed on compound commodities. If the unit cost is positive, then the proportional cost raises the relative price of the more expensive good, and thus induces substitution towards the less expensive good within this group. Then, the substitution effect of the proportional cost for a compound commodity is non‐negative if and only if the compound commodity and the other goods are, on average, not strongly substitutable.  相似文献   
63.
刘敏生 《价值工程》2015,(18):21-22
本文结合作者实际工作经验,并参考大量的文献资料,通过实体界面管理在房建群体工程施工应用中得到的显著成效,以期为同类项目管理实践提供方法和支持,并完善界面管理在项目管理的理论体系中的应用。  相似文献   
64.
It has been argued that ‘dirty work’ is characterised by strong occupational and workgroup cultures. This literature has mainly focused on direct workers, but this article largely attends to indirect ‘dirty’ workers, specifically meat inspectors, through ethnographic research conducted in a UK slaughterhouse. Four arguments are developed; the first is that ‘dirty workers’ may not all display group cohesiveness; indeed, individualisation may be more evident depending upon the technology used, internationalisation and employment conditions. Second, there is complexity and diversity within ‘dirty work’ and even single occupations can contain considerable variety, rendering generalisations problematic. Third, we argue that much greater attention needs to be given to the wider contextual issues affecting ‘dirty work’, specifically changing labour markets, itinerant labour, economic conditions and technologies. Finally, we argue that stigmatised work may become more so if it is equated with the low wage economy and/or undercutting conditions of employment through exploiting migrant labour.  相似文献   
65.
我国在由计划经济向社会主义市场经济转型的过程中,个人自致性因素对阶层地位获得的影响日益突出。在众多的个人自致性因素中,职业技能培训是最重要的个人自致性因素之一,其对阶层地位获得发挥着举足轻重的作用。笔者通过实证研究证实:职业技能培训对农民阶层地位的获得存在显著影响。为了更好地推进农民的职业技能培训,一方面要充分发挥政府、企业、社会组织和农民个人等各个方面在农民职业技能培训中的作用,建立社会协同培训的格局;另一方面,在开展农民职业技能培训内容的设计和实施时,必须充分考虑到不同培训对象的不同需求,增加职业技能培训的针对性。  相似文献   
66.
Employing a multi-level with longitudinal concern data analysis this research examines the impact from family management and ownership on semi-globalization pattern of globalization in family business groups from an integrated framework. The results reveal that the more likelihood that the controlling family utilize family management in the subsidiary, and the higher degree of pyramidal ownership in the subsidiary, the more likelihood that the family business group will choose to engage in the host regions. Additionally, family management and pyramidal ownership is positively related with the choice to engage in a higher difference region instead of a lower difference region in family business groups. The theoretical and future research implications of these findings for family enterprises and globalization research are discussed.  相似文献   
67.
Agricultural applications of nanotechnology are at a relatively early stage and little is known about consumer responses to the technology. Canadian consumer responses to food nanotechnology are examined through the lens of the Food Value Scale. Data from a survey of Canadian consumers are used to evaluate the relative importance of eleven food values to food purchase decisions. We find that taste, safety, nutrition, and price are among the most important food values to Canadians, however, consumers exhibit considerable heterogeneity with respect to the priority placed on these values. A discrete choice experiment (DCE) explores the effect of food values on choice behavior. The DCE is positioned as a sliced apple product with non-browning and antioxidant-enhanced features introduced through the use of nanocoating or a conventional coating method. Random parameters logit (RPL) and latent class models (LCM) confirm the existence of significant preference heterogeneity. The LCM identifies three classes of consumers: “supporters,” “doubters,” and “opponents” who differ in their reaction to nanotechnology and in the relative importance placed on food values such as naturalness, novelty, and convenience. The analysis shows that food values provide additional insights into consumers’ food choices and their attitudes toward novel food technologies.  相似文献   
68.
We investigate motivational drivers of financial advisor use, accounting for investor heterogeneity, with the goal of helping institutions increase the use of financial advisor services. The results from a latent class choice model reveal two distinct segments that differ in their approach to the financial advice decision. While higher levels of risk tolerance, trust, and self-efficacy increase financial advice use for both segments, albeit at much higher propensities for Segment 1, personality only matters for Segment 1. Moreover, their regulatory focus differs with Segment 1 being promotion and Segment 2 being prevention focused. Using these results, we offer suggestions for marketing strategies.  相似文献   
69.
王澍 《价值工程》2015,34(8):215-216
集团企业逐渐成为我国经济发展的骨干和支柱[1]。如何解决好集团企业内部之间的协同管理问题已经成为集团生存发展的瓶颈问题[2]。本文对集团企业协同管理系统进行了深入地分析研究,对企业的发展具有一定的理论指导意义。  相似文献   
70.
针对鹤煤九矿井下硐室出现浆皮开裂、底臌等类似现象,采用相似模拟的方法,以鹤煤九矿31采区避难硐室临近硐室群实际地质资料为基础,研究分析了给定应力环境下不同支护方式时硐室围岩的变形破坏情况、失稳过程。作者认为,随着顶部压力的逐渐改变,顶板裂隙逐渐增加,裂隙深度和宽度逐步增加,巷道出现离层、底鼓,进而呈现大面积破坏。该结果对区段巷道布置与加固方案优化有一定的参考价值。  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号