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   16035篇
  免费   587篇
  国内免费   188篇
财政金融   1906篇
工业经济   685篇
计划管理   2764篇
经济学   3668篇
综合类   1779篇
运输经济   287篇
旅游经济   348篇
贸易经济   1540篇
农业经济   1933篇
经济概况   1900篇
  2024年   61篇
  2023年   291篇
  2022年   239篇
  2021年   391篇
  2020年   687篇
  2019年   470篇
  2018年   366篇
  2017年   568篇
  2016年   495篇
  2015年   534篇
  2014年   931篇
  2013年   1441篇
  2012年   1069篇
  2011年   1356篇
  2010年   1073篇
  2009年   990篇
  2008年   1100篇
  2007年   989篇
  2006年   955篇
  2005年   678篇
  2004年   496篇
  2003年   374篇
  2002年   267篇
  2001年   255篇
  2000年   147篇
  1999年   107篇
  1998年   70篇
  1997年   76篇
  1996年   47篇
  1995年   29篇
  1994年   23篇
  1993年   33篇
  1992年   24篇
  1991年   15篇
  1990年   6篇
  1989年   9篇
  1988年   5篇
  1987年   3篇
  1986年   7篇
  1985年   28篇
  1984年   38篇
  1983年   26篇
  1982年   27篇
  1981年   3篇
  1980年   6篇
  1979年   4篇
  1978年   1篇
排序方式: 共有10000条查询结果,搜索用时 18 毫秒
961.
采用价值链分析法,选定开展了林权改革的浙江省安吉县为例,针对其木、竹制品价值链上的培育和加工环节设计调查问卷并分别访谈。调查数据显示,木制品和竹制品价值链上从原料培育及初加工直至产成品各环节成本利润对比悬殊。分析其中的影响因素后发现,采伐政策是造成木、竹加工业培育和初加工环节利润悬殊的主要影响因素之一。  相似文献   
962.
中国生物质利用政策演变与展望   总被引:3,自引:0,他引:3  
介绍了中国生物质利用政策的背景:保障能源安全,保护环境,促进经济社会可持续发展。阐述了中国生物质利用政策发展演变的四个阶段:早期的生物质利用政策、能源需求增长下的生物质利用政策、能源安全下的生物质利用政策、全球气候变化下的生物质利用政策。展望了中国生物质利用政策的发展前景和方向:非粮,非耕地,立足国内,并注重保护环境。  相似文献   
963.
江西省林业雨雪冰冻灾害调研报告   总被引:1,自引:0,他引:1  
江西林业在这次雨雪冰冻灾害中受损严重。全省林地受灾面积356.7万hm2,占总有林地面积40%,其中毛竹林73.9万hm2,占全省毛竹林面积90%,受损毛竹6亿根。林业直接经济损失154亿元。林业灾害使林农生产生活出现困难,森林资源恢复需要一些时间,生态平衡受到重创,加剧了原本就紧张的木材供需矛盾。林业恢复重建面临受损木材清理和补植补造任务重,劳力、经费缺口大,林农近期生活来源无保证,贷款造林者无力偿还到期债务,灾后问题缺乏技术指导及相应保障措施等问题。需从高层面、深层次深刻认识解决急需解决的问题。  相似文献   
964.
在简要回顾遂昌县竹炭业发展历程的基础上,分析行业生产规模、市场开拓、企业新产品研发、产品获奖及竹炭业在农村脱贫致富奔小康进程中发挥的重要作用。从逐步加大政策扶持力度,加强组织领导,组建行业协会,重视对外宣传、创造良好的发展环境等层面,总结了政府在遂昌竹炭产业发展中所起的作用。  相似文献   
965.
The paper estimates an aggregate daily water demand for Sydney using rainfall, temperature, and price data from 2001 to 2005, and a dummy variable to account for reductions in demand following the introduction of water restrictions in October 2003. Analyses based on the estimated price elasticity, and also values one and two standard errors above and below this estimate, are used to model the effects of different pricing and water supply scenarios. The simulations indicate that without a fundamental change in water policy (pricing and supply) Sydney faces the possibility of critical water shortages in the short- to medium-term should there be a continuation of low rainfall events.  相似文献   
966.
简要地回顾和评述了二十多年来我国旅行社行业的发展历程,对一些长期困扰旅行社行业发展的诸如旅游业发展与制度化环境、政府主导与市场主导、“政策失灵”问题,行业垄断还是行业竞争等理论问题提出了独立的见解,并就我国旅行社业的发展趋势与路径选择提出了建设性的意见。  相似文献   
967.
西部农村大开发的关键在于发展特色经济,增加农民收入,降低农业成本,转移农村剩余劳动力.通过引农入镇,以商活镇,科学规划发展西部小城镇,既能引导农民发展特色经济又能发展二、三产业,转移剩余劳动力,增加农民收入,使西部农村大开发与小城镇建设相得益彰.  相似文献   
968.
Since the beginning of the consumer crisis, which in Italy can be traced back to the second half of 2008, there has been a significant development of store brands? market share which has reached close to 25% in some leader groups (for example Coop, Conad, Esselunga). The acceleration of the rate of penetration of store brands differs by category and store format. The main reason for this result is the different consumer purchase behavior. In this framework, this work aims at analyzing the elements that have determined the store brands success in the main store format (hypermarket, supermarket, convenience store), through analysis of single retail mix levers management. The factors that have mostly influenced the growth in store brands, in each store format, are investigated throughout a complete informative retail database. The aim of this study is to verify whether the management of the individual retail mix levers produces the same results in different store formats. Additional enhancement to the understanding of store brands management and further support to modern distribution management policies are also provided. A relevant finding is that the performance of store formats depends on the use of specific retail mix levers.  相似文献   
969.
Public policy-makers have been noted to sometimes ignore marketing/consumer research, even when the policy issue clearly pertains to consumption markets. We embark to identify factors that may explain policy-makers’ limited attention to marketing/consumer research, especially in cases related to consumer affairs that may have public health implications. Empirically, we focus on policy-making around the advertising of alcohol products. Having been involved in this policy-making process in Finland, we elucidate the case through an introspective narrative. We find that the factors explaining policy-makers’ limited attention to marketing/consumer research range from the decision-making characteristics of policy-makers, through inconsistent definitions for key terminology, to the fear of over-generalizing certain theories of marketing/consumer research. Regarding the latter, a key issue in the present case was that public policy-makers were unconvinced about the generic marketing theory stating that in mature markets, advertising will not increase the total consumption demand of a product category.  相似文献   
970.
Global leaders agree on the need to substantially decarbonize the global economy by 2050. This paper compares potential costs associated with different policy pathways to achieve tourism sector emission reduction ambitions (?50% by 2035) and transform the sector to be part of the mid-century decarbonized economy (?70% by 2050). Investment in emissions abatement within the tourism sector, combined with strategic external carbon offsets, was found to be approximately 5% more cost effective over the period 2015–2050 than exclusive reliance on offsetting. The cost to achieve the ?50% target through abatement and strategic offsetting, while significant, represents less than 0.1% of the estimated global tourism economy in 2020 and 3.6% in 2050. Distributed equally among all tourists (international and domestic), the cost of a low-carbon tourism sector is estimated at US$11 per trip, equivalent to many current travel fees or taxes. Exclusive reliance on offsetting would expose the sector to extensive and continued carbon liability costs beyond mid-century and could be perceived as climate inaction, increasing reputational risks and the potential for less efficient regulatory interventions that could hinder sustainable tourism development. Effective tourism sector leadership is needed to develop a strategic tourism policy framework and emission measurement and reporting system.  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