全文获取类型
收费全文 | 16401篇 |
免费 | 651篇 |
国内免费 | 235篇 |
专业分类
财政金融 | 800篇 |
工业经济 | 337篇 |
计划管理 | 1710篇 |
经济学 | 2557篇 |
综合类 | 2918篇 |
运输经济 | 820篇 |
旅游经济 | 3309篇 |
贸易经济 | 1760篇 |
农业经济 | 1162篇 |
经济概况 | 1914篇 |
出版年
2024年 | 39篇 |
2023年 | 254篇 |
2022年 | 372篇 |
2021年 | 470篇 |
2020年 | 514篇 |
2019年 | 474篇 |
2018年 | 465篇 |
2017年 | 587篇 |
2016年 | 549篇 |
2015年 | 452篇 |
2014年 | 918篇 |
2013年 | 1969篇 |
2012年 | 1290篇 |
2011年 | 1415篇 |
2010年 | 1046篇 |
2009年 | 999篇 |
2008年 | 1187篇 |
2007年 | 1007篇 |
2006年 | 929篇 |
2005年 | 561篇 |
2004年 | 439篇 |
2003年 | 331篇 |
2002年 | 228篇 |
2001年 | 214篇 |
2000年 | 152篇 |
1999年 | 113篇 |
1998年 | 33篇 |
1997年 | 27篇 |
1996年 | 24篇 |
1995年 | 18篇 |
1994年 | 8篇 |
1993年 | 5篇 |
1992年 | 6篇 |
1991年 | 3篇 |
1990年 | 2篇 |
1989年 | 5篇 |
1988年 | 5篇 |
1987年 | 8篇 |
1986年 | 4篇 |
1985年 | 26篇 |
1984年 | 31篇 |
1983年 | 28篇 |
1982年 | 38篇 |
1981年 | 16篇 |
1980年 | 10篇 |
1979年 | 12篇 |
1978年 | 4篇 |
排序方式: 共有10000条查询结果,搜索用时 203 毫秒
81.
This study provides a review of eye-tracking as a technique for measurement of attention. The review discusses its theoretical basis, advantages and disadvantages, data collection procedures, analysis methods, and application in tourism and hospitality. Areas for further research in tourism and hospitality are provided based on a systematic review of tourism research using eye-tracking. 相似文献
82.
王中雨 《中国农业资源与区划》2018,39(6):145-151
[目的]分析新疆坎儿井农业文化遗产资源的旅游效用,以期更好地指导当地旅游资源的开发利用工作,达到促进区域休闲农业可持续发展的目的。[方法]文章以新疆坎儿井农业文化遗产资源为例,分析其资源特征、资源保护及开发现状;采用AHP分析法分析坎儿井农业遗产资源旅游效用,基于上述分析并结合农业文化遗产旅游发展的需求,提出优化其农业遗产资源保护及开发的规划、模式及策略。[结果]坎儿井农业文化遗产资源中主体旅游资源坎儿井工程(B_1)、辅助旅游资源农业文化资源(B_2)、客源与市场特征(B_3)和外部因素特征(B_4)的权重分别是0.43、0.22、0.10和0.06。[结论]在比较其生态价值、环保价值、旅游价值的基础上,发现在稳固生态价值与环保价值的同时,挖掘新疆坎儿井的旅游价值是实现农业文化遗产有效保护的最佳途径;主体旅游资源坎儿井工程和辅助旅游资源农业文化资源为坎儿井农业遗产资源旅游带来良好的经济收益,而客源与市场特征和外部因素特征权重最低,说明这两个因素是导致旅游效益权重低的主要原因;农业遗产资源旅游的保护和开发两者互惠共赢,但必须建立在重视农业遗产资源的保护及其宣传保护的基础上。 相似文献
83.
The deterioration of attractions, landmarks, artefacts and destinations is a critical issue facing tourism across the world. The closure of tourism sites and attractions is increasingly more common due to the difficulty and expense of managing preservation with onsite tourism engagement. However, the closure or destruction of tourism sites presents challenges for tourism development. The inability to foster meaningful visitor engagement at sites has implications for the local communities. This paper aims to explore the efficacy of creating tourism experiences in destinations and sites that have succumbed to over-tourism, resultant deterioration and even, destruction. To achieve this objective, the paper introduces the concept of second chance tourism and the role of innovative preservation methods such as virtual and mixed reality. Based on the proposed framework, the collation of data will provide indications on site preservation and impact mitigation via a second chance to reduce pressure on inherently fragile destinations. 相似文献
84.
资本外逃是一个复杂的经济问题,是由多种原因造成的,并会给一国经济发展带来不可估量的风险和损失。基于此,论文梳理了资本外逃的研究现状,提出了资本外逃所产生的经济效应,在此基础上,提出了资本外逃的政策选择,为一国在治理资本外逃时提供了政策选择和借鉴。 相似文献
85.
ABSTRACT Tourism and tourism development have the potential to make a positive impact on a region’s economic development and sustainability. In this sense, the central Karoo has a great deal to offer heritage tourists. As there are numerous battlefield sites associated with the South African War (1899–1902) (previously the Anglo-Boer War) the central Karoo offers a unique development opportunity to demarcate a designated battlefield route dedicated to the war. This study investigated the potential for the development of the proposed route by involving potential stakeholders (specifically product owners and government officials) on the route. The study was qualitative, and 33 interviews were conducted. Thematic content analysis was used to analyse the data. The main findings indicate a need for the development of the route and the establishment of a South African War Battlefields Route Destination Marketing Organisation (DMO). 相似文献
86.
The global hospitality industry has experienced significant consolidation in the past several decades. While evidence in the general business literature suggests that the target firm shareholders gain instead of the acquiring firm shareholders, some studies in the hospitality industry have suggested that mergers and acquisitions (M&As) are also beneficial to acquiring firms. Using a comparative study design and a comprehensive sample over 41 years, we empirically examine whether M&As create more value in the hospitality industry than in other industries and whether certain deal characteristics may explain the potential performance differential. Overall, we find that M&As in the hospitality industry outperform M&As in non-hospitality sectors. When examining deal attributes, we find that relative size of target, cash method of payment, and an unlisted target are characteristics positively related to merger performance and help explain some of the performance differential. We contribute theoretically and empirically to the literature by demonstrating that industry and deal effects play an important role in M&A performance. 相似文献
87.
Lucas W. Davis 《Applied economics letters》2019,26(18):1497-1502
The prospect for electric vehicles as a climate change solution hinges on their ability to reduce gasoline consumption. But this depends on how many miles electric vehicles are driven and on how many miles would have otherwise been driven in gasoline-powered vehicles. Using newly-available U.S. nationally representative data, this paper finds that electric vehicles are driven considerably fewer miles per year on average than gasoline-powered vehicles. The difference is highly statistically significant and holds for both all-electric and plug-in hybrid vehicles, for both single- and multiple-vehicle households, and both inside and outside California. The paper discusses potential explanations and policy implications. Overall, the evidence suggests that today’s electric vehicles imply smaller environmental benefits than previously believed. 相似文献
88.
人口老龄化是经济增长的一大阻碍,它对碳排放的影响是做出环境政策抉择的关键因素.以中国2002—2017年的省级面板数据为研究样本,从理论与实证两个层面分析人口老龄化与碳排放的关系及影响机制.一方面,构建包含碳排放的世代交叠模型(overlapping generations,OLG),发现老龄化主要通过消费效应和生产效应两个路径对碳排放产生影响;另一方面,从实证层面发现老龄化与碳排放之间存在倒"U"形关系,而且消费效应在人口老龄化与碳排放的关系中起到部分中介作用,生产效应的影响则不显著. 相似文献
89.
《Socio》2021
Based on the day-night PM2.5 difference of the nearest atmospheric monitoring points to measure whether there is illegal emission, this paper explores the impact of environmental protection officials' tenure (EPLT) on illegal emissions. The results show that there is a positive correlation between EPLT and illegal emissions. Stable EPLT can reduce illegal emissions by increasing environmental information disclosure and environmental subsidies. It can increase illegal emissions by weakening public pollution reporting and media supervision, environmental law enforcement and promoting corruption. In addition, EPLT can increase illegal emissions as EPLT is less than 3.55 years, while EPLT can increase illegal emissions as EPLT exceeds 6.21 years. Further, when mayor's tenure and EPLT are both stable, the promotion effect of EPLT on illegal emission is stronger. Stable company director's tenure can also aggravate the promotion effect of EPLT on illegal emissions. 相似文献
90.
线性文化遗产是一种特殊的遗产类型,随着人们对遗产完整性不断深入的理解以及遗产活化利用理念的发展,线性文化遗产旅游的重要性日益显现。因此,树立线性文化遗产意识,把握线性文化遗产特征,是推进线性文化遗产旅游利用和可持续发展的重要问题。本文以《世界遗产名录》中收录的线性文化遗产为基础数据,对线性文化遗产的类别与列入标准、资源组合模式和核心区与缓冲区等典型特征进行深入分析,并从旅游空间演化和旅游活化路径两方面总结其对旅游利用模式的影响,以期为线性文化遗产旅游的可持续发展提供科学参考。研究结果表明,线性文化遗产旅游空间结构发展过程遵循“增长极”演化规律,并在遗产文化分层上表现出不同的利用方式和活化路径。 相似文献