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   3878篇
  免费   164篇
  国内免费   77篇
财政金融   233篇
工业经济   137篇
计划管理   827篇
经济学   550篇
综合类   589篇
运输经济   51篇
旅游经济   136篇
贸易经济   844篇
农业经济   272篇
经济概况   480篇
  2024年   7篇
  2023年   76篇
  2022年   59篇
  2021年   86篇
  2020年   159篇
  2019年   103篇
  2018年   95篇
  2017年   156篇
  2016年   133篇
  2015年   124篇
  2014年   274篇
  2013年   583篇
  2012年   369篇
  2011年   432篇
  2010年   315篇
  2009年   262篇
  2008年   269篇
  2007年   170篇
  2006年   131篇
  2005年   86篇
  2004年   61篇
  2003年   41篇
  2002年   27篇
  2001年   32篇
  2000年   20篇
  1999年   9篇
  1998年   6篇
  1997年   7篇
  1996年   7篇
  1995年   6篇
  1994年   1篇
  1993年   2篇
  1989年   1篇
  1986年   1篇
  1985年   3篇
  1984年   3篇
  1983年   1篇
  1982年   2篇
排序方式: 共有4119条查询结果,搜索用时 218 毫秒
101.
Estimation of ecosystem service values is a hot area of research in ecological conservation and economics. However, the costs of these outputs are largely unknown. In this paper, we estimated the opportunity cost of water allocated to afforestation projects through mathematical modeling based on statistical data for all of China to provide support for restoration planning based on a fuller consideration of the true costs. To guide future ecological conservation and environmental policy development, we illustrate a neglected concept (ecosystem service costs) and use this concept to compare the ecological services provided by ecological restoration based on afforestation with those of restoration based on the conservation of natural vegetation using data obtained since 1949 in China. The results showed that afforestation and natural vegetation create annual costs related to use of the available water resources equal to 4800 and 3700 RMB ha−1, respectively, representing a water opportunity cost of 1100 RMB ha−1 for afforestation. This illustrates the rule that “there is no free lunch” for any service, including ecosystem services. Therefore, to support the development of more effective and sustainable environmental restoration policy, it will be necessary to evaluate the associated opportunity costs.  相似文献   
102.
There seems to be widespread consensus in the ecosystem services literature that benefits from ecosystems are not produced by ecosystems independently of humans, but arise because of people’s interactions with an ecosystem. Yet, these interactions are hardly ever explicitly investigated in a way that directly contributes to the ecosystem services debate. Here, we empirically examine the role of humans in the generation of ecosystem services, and the factors that might help us to understand diversity in these processes.We analyzed 47 qualitative interviews with people using a mixed woodland–farmland–upland ecosystem in Fife, Scotland, for a variety of activities. Interviewees mentioned a wide range of ecosystem services, especially provisioning and cultural services, which were closely connected to human activities in the place. We term the interactions between people and place that lead to ecosystem services here ‘co-production’, and distinguish between: (a) the co-production of ecosystem structures; (b) the co-production of the services proper and (c) the attribution, i.e., construction, of meaning to these structures and services. All three processes could be carried out by individuals or jointly, by groups of people, and the social nature of the interaction often added meaning and value to the co-production process. Two sets of factors, clustered under the headings of ‘identities’ and ‘capabilities’, shaped these interactions, and helped us to understand variation in people’s engagement with the ecosystem as well as their views on ecosystem disservices.While further research is needed to explore the usefulness of our analytical framework in other contexts, our findings suggest that identities and capabilities of people have to be considered much more strongly than is currently the case in standard ecosystem services assessments, as these influence which ecosystem structures are eventually turned into benefits, and give important insights into the environmental justice related to the distribution of ecosystem benefits.  相似文献   
103.
The service industries have experienced dramatic changes in service delivery format because of fast-paced innovation in information technology. Hybrid services involve service deliveries through conventional and technology-enabled environments, each of which is complementary and non-interchangeable. However, limited research has examined consumer behavior in response to a series of relevant service episodes in different channels at different points in time. In other words, how customers perceive service quality at each service encounter and how the cumulative effect of these perceptions influences customers’ overall service value assessment and satisfaction remain unclear. This study addresses this research gap by investigating the sequential influence of e-service quality on in-person service quality in a hybrid service format in which interpersonal and computer-mediated services coexist but at different points in time. Empirical analysis shows that e-service quality directly and positively affects in-person service quality, which fully mediates the effects of e-service quality on perceived value and customer satisfaction. The sequence of service encounters matters because in-person service quality perception has a stronger effect than e-service quality on customer metrics. Cumulative quality perceptions significantly influence perceived value and overall customer satisfaction. Theoretical and managerial implications are presented in the discussion.  相似文献   
104.
In a consumption context, there is a growing interest in understanding unfair behaviour of firms towards customers. Our research focuses on unfairness perceptions driven by differential treatment, particularly through price discrimination, i.e. the practice of charging differential prices to different customers. Our purpose is to investigate the consequences of these practices for unfairness perceptions, satisfaction, trust and patronage, showing a dual perspective: the perceptions of new vs existing clients when they face the advantaged or disadvantaged conditions. A survey-based experimental design approach was used. We conclude that unfairness perception is stronger for existing than for new clients, prompting negative attitudinal and behavioural consequences when the former are exposed to disadvantaged conditions in relation to the latter. Our study aims to provide marketers with a perspective on the pitfalls related to differential treatment between present and prospective clients, with implications in terms of design and implementation of customer management strategies.  相似文献   
105.
This paper focuses on the vertical integration of knowledge-intensive business services (KIBS) into manufacturing sectors, using a subsystem approach to input–output analysis. It aims at correctly assessing the process of structural change that has occurred in the four main European countries (France, Germany, Italy and the UK) over time (1995–2005). It does not focus on KIBS sectors per se, but on their function as carriers and sources of knowledge which influences the performance of sectors, value chains and clusters across industries and within countries. The analysis shows that KIBS’ contribution to satisfying the final demand of manufacturing is in general largely underestimated; that KIBS vertical integration into manufacturing has increased over time in all the countries investigated except the UK; and that the extent to which manufacturing sectors outsource to KIBS is significantly affected by their technological intensity.  相似文献   
106.
While the literature has suggested the possibility of breach being composed of multiple facets, no previous study has investigated this possibility empirically. This study examined the factor structure of typical component forms in order to develop a multiple component form measure of breach. Two studies were conducted. In study 1 (N = 420) multi-item measures based on causal indicators representing promissory obligations were developed for the five potential component forms (delay, magnitude, type/form, inequity and reciprocal imbalance). Exploratory factor analysis showed that the five components loaded onto one higher order factor, namely psychological contract breach suggesting that breach is composed of different aspects rather than types of breach. Confirmatory factor analysis provided further evidence for the proposed model. In addition, the model achieved high construct reliability and showed good construct, convergent, discriminant and predictive validity. Study 2 data (N = 189), used to validate study 1 results, compared the multiple-component measure with an established multiple item measure of breach (rather than a single item as in study 1) and also tested for discriminant validity with an established multiple item measure of violation. Findings replicated those in study 1. The findings have important implications for considering alternative, more comprehensive and elaborate ways of assessing breach.  相似文献   
107.
This research note highlights the novelty of integrating location-based services (LBS) available on Smart Phones and Tablets into traditional resident attitude survey methodologies such as door-to-door data collection. It specifically reviews how the LBS technology available on mobile devices can be used to systematically capture GPS coordinates of one's residence and integrate this captured spatial information into software such as ArcGIS and SPSS for further analysis. By having GPS coordinates associated with respondents' answers, researchers have an additional layer of information available for conducting a multitude of tests previously not possible with subjective categorical spatial data. Two research applications using the spatial location of residences are provided as examples of how LBS available on mobile devices can be integrated within resident attitude projects. The use of LBS technology can help researchers better understand how the distance residents live from major tourist attractions influences their attitudes towards tourism.  相似文献   
108.
现在越来越多的客户将其部分或全部的IT运维工作交给外部的专业服务提供商。IT外派人员长期在客户的现场提供服务,这也导致了外派人员对母公司缺乏组织归属感。本文选择了四个涉及IT外派人员的IT运维外包项目进行案例研究,试图探寻影响外派人员对母公司组织归属感的影响因素。本文发现影响外派人员组织归属感的因素主要包括沟通、公平、员工关怀和稳定预期,但是在不同的心理契约情境下影响外派人员组织归属感的因素各不相同。  相似文献   
109.
110.
针对服务企业普遍面对的服务补救低效与顾客忠诚保持的挑战,文章基于心理契约与前瞻性服务补救理论,构建了顾客心理契约违背、服务补救和顾客忠诚间关系的分析框架,实证分析了心理契约违背对顾客忠诚的作用机理,并检验了服务补救策略对这一关系的调节效应。通过对262名饭店顾客的问卷调查,采用回归分析法处理数据,研究结果表明:心理契约违背两个维度与饭店顾客忠诚两个维度均呈显著负相关关系,顾客心理契约违背程度越高,顾客忠诚度越低;服务补救在心理契约违背与饭店顾客忠诚的关系中起到部分调节作用,即当企业服务出现失误而使顾客感知心理契约违背发生时,如果能采用恰当的服务补救策略,可以降低心理契约违背对顾客忠诚的负面影响。  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