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   8908篇
  免费   748篇
  国内免费   87篇
财政金融   857篇
工业经济   497篇
计划管理   2425篇
经济学   1180篇
综合类   514篇
运输经济   220篇
旅游经济   394篇
贸易经济   2517篇
农业经济   445篇
经济概况   693篇
信息产业经济   1篇
  2024年   23篇
  2023年   194篇
  2022年   157篇
  2021年   297篇
  2020年   424篇
  2019年   400篇
  2018年   356篇
  2017年   413篇
  2016年   337篇
  2015年   327篇
  2014年   425篇
  2013年   853篇
  2012年   616篇
  2011年   685篇
  2010年   435篇
  2009年   326篇
  2008年   737篇
  2007年   636篇
  2006年   593篇
  2005年   435篇
  2004年   308篇
  2003年   210篇
  2002年   143篇
  2001年   86篇
  2000年   71篇
  1999年   63篇
  1998年   45篇
  1997年   41篇
  1996年   23篇
  1995年   12篇
  1994年   7篇
  1993年   8篇
  1992年   7篇
  1991年   5篇
  1990年   5篇
  1989年   3篇
  1988年   4篇
  1987年   1篇
  1986年   3篇
  1985年   4篇
  1984年   5篇
  1983年   5篇
  1982年   6篇
  1981年   6篇
  1980年   1篇
  1979年   1篇
  1973年   1篇
排序方式: 共有9743条查询结果,搜索用时 15 毫秒
71.
This study uncovers the distinct contribution of investment promotion agencies’ (IPAs) overseas branch offices in advancing and even creating foreign direct investment. It offers a novel categorisation of IPAs depending on location and headquarter/branch status, and conceptually connects the known functions of IPAs with the advantages set out by the OLI paradigm. Empirical examination of longitudinal data from 29 European IPAs finds that the activities of their branches in China instilled greater awareness and confidence in Chinese multinational enterprises about their ownership- and European location-specific advantages. This contribution of IPA branches is especially salient in emerging economies with newcomer investors.  相似文献   
72.
明清时期长江中游地区地方文献记载的茭簰,并非漂浮种植性质的葑田,而是漂浮居住性质的水上居家设施。“随波上下”且“不时迁移”是其基本特性,实质是借水之力以避水之害,乃湖区居民应对洪涝灾害的居住创举。茭簰不同于为众熟知的舟船,亦有别于水上航行的排筏,茭簰居民并非渔民,而是备有“种莳牲畜”的农民。茭簰与葑田,虽然一耕一居,却具有共同的指向。茭簰是湖区农家适应环境变化,根据生产生活需要而做出的相对选择,堪称湖区居民趋利避害、协调人水关系的代表性举措。  相似文献   
73.
Dynamic factor models have been the main “big data” tool used by empirical macroeconomists during the last 30 years. In this context, Kalman filter and smoothing (KFS) procedures can cope with missing data, mixed frequency data, time-varying parameters, non-linearities, non-stationarity, and many other characteristics often observed in real systems of economic variables. The main contribution of this paper is to provide a comprehensive updated summary of the literature on latent common factors extracted using KFS procedures in the context of dynamic factor models, pointing out their potential limitations. Signal extraction and parameter estimation issues are separately analyzed. Identification issues are also tackled in both stationary and non-stationary models. Finally, empirical applications are surveyed in both cases. This survey is relevant to researchers and practitioners interested not only in the theory of KFS procedures for factor extraction in dynamic factor models but also in their empirical application in macroeconomics and finance.  相似文献   
74.
Online-to-offline (O2O) has become a rapidly growing e-commerce model worldwide, but the factors influencing consumers' purchase decision-making have not been examined well. After exploring the working mechanism of the O2O model, we extract eleven indexes of consumers' overall evaluation in the O2O model with Crawlzilla and R techniques. Social network analysis (SNA) is adopted to build social networks reflecting consumers' overall evaluation in the O2O model. Based on the modified social network and the extracted subgraph, this study (N = 768) reveals consumers' overall evaluation behavior patterns in the O2O model by calculating network density, central potential, edge betweenness. The results show that shoppers overall evaluate the eleven indexes, especially perceived product quality, online product price, promotion intensity, business reputation, and product brand, which reflects the significant associations between the indexes. Among all the eleven evaluation indexes, perceived product quality, online product price, and business reputation dominate consumers’ decision-making behavior. When making purchase decisions, consumers not only overall consider online product price, perceived product quality, and business reputation but also balance perceived product quality, business reputation, and promotion intensity. Finally, we make some suggestions on marketing strategy for e-commerce companies.  相似文献   
75.
The purpose of this study is to re-conceptualize the conventional marketing mix for Bottom of the Pyramid (BoP) markets and propose a revised framework by reorganizing the elements based on the customer perspective while retaining the principles of services marketing. Primary data was collected through a questionnaire with a sample size of 400 people from both urban and rural markets in the BoP. Findings indicate that the needs and perspective of the BoP members is distinct from the Middle of the Pyramid (MoP). Managers should consider this point while formulating marketing mix strategies for BoP markets. The present study is the first of its kind to present a revised marketing mix framework for customers in the BoP markets. The framework comprises five Ps, including personalization, product, place, the process of service delivery and price. Thus, a theoretical contribution is made in the context of service marketing and the BoP.  相似文献   
76.
77.
This study examines the global nature of the recent crisis under bivariate Markov-switching models for pre- and post-crisis periods using the breakpoint of August 9, 2007. It quantifies international synchronization of boom-bust regime switches to investigate contagion-type dynamic comovements of Real Estate Investment Trusts (REITs). Global REIT markets display persistent bust regimes from September 2008 to May 2009, whereas the regime-switching patterns are not significant in the pre-crisis period. The results provide new evidence for global REIT contagion phenomena and suggest greater difficulties in diversifying risks across global REIT markets during the post-crisis period.  相似文献   
78.
Faultlines can affect a board of director’s effectiveness in supervising senior managers, which in turn affects the value of a company’s cash holdings. Based on sample data from Chinese A-share listed companies from 2004 to 2016, we examine the relationship between board faultlines and the value of cash holdings. The empirical results indicate that board faultlines have a significant inhibitory effect on cash holding value. This inhibitory effect is stronger for board faultlines resulting from deep-level attributes. Furthermore, the inhibitory effect of board faultlines is stronger in state-owned enterprises (SOEs) than in non-SOEs. As an important governance mechanism, management shareholdings can reduce agency costs and mitigate the negative impact of board fissures on cash holdings. Overall, we enrich the literature on the economic consequences of board faultlines and their influence on cash holding value. We also offer companies practical suggestions for improving the supervisory mechanism of their board of directors.  相似文献   
79.
当市场环境不好以及不确定性增加时,基金进行安全投资转移。企业积极履行社会责任所形成的声誉资本具有“类保险”作用,在面临负面事件或不确定性环境冲击时能够防止股价大幅下跌和市值损失;基金是否会在市场环境不好时将投资组合转向社会责任绩效更高的股票进行安全投资转移呢?使用2010—2017年开放式基金样本,实证检验了企业社会责任、市场环境与安全投资转移之间的关系。研究发现,在市场环境表现不佳时,基金避险需求增加,倾向将投资组合更多地转向社会责任绩效高的股票进行安全投资转移;进一步研究发现基金和基金经理特征影响基金的安全投资转移行为,净资金流入较少、历史业绩差、经理选股能力差的基金根据企业社会责任进行安全投资转移的程度大。研究还发现,基金的安全投资转移行为对基金业绩和基金收益波动产生了积极影响。  相似文献   
80.
This study introduces an optimal capacity and operation design of a robot logistics system that can reduce human workload in the hotel industry. In hotels, there are several duties that can be replaced by robots such as accompanying guests to the certain areas, delivering specific items to the guest rooms, and transporting some items that guests want to be removed from the guest rooms. To apply the robot logistics system in the hotel industry, the capacity and operation design should be prepared adequately. For that, a mathematical model-based optimization technique is used to decide the number of robots with the concept of minimizing total investment cost and to derive the optimal job assigning with the purpose of maximizing total covered jobs. In addition, a numerical example is performed to validate the proposed mathematical model and the sensitivity tests are examined to reflect the random features.  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