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   1221篇
  免费   47篇
  国内免费   2篇
财政金融   198篇
工业经济   88篇
计划管理   215篇
经济学   220篇
综合类   103篇
运输经济   9篇
旅游经济   39篇
贸易经济   179篇
农业经济   53篇
经济概况   165篇
邮电经济   1篇
  2024年   2篇
  2023年   12篇
  2022年   24篇
  2021年   44篇
  2020年   46篇
  2019年   33篇
  2018年   49篇
  2017年   45篇
  2016年   38篇
  2015年   37篇
  2014年   42篇
  2013年   94篇
  2012年   98篇
  2011年   116篇
  2010年   100篇
  2009年   73篇
  2008年   70篇
  2007年   70篇
  2006年   71篇
  2005年   71篇
  2004年   22篇
  2003年   19篇
  2002年   17篇
  2001年   20篇
  2000年   5篇
  1999年   15篇
  1998年   6篇
  1997年   4篇
  1996年   7篇
  1995年   2篇
  1993年   3篇
  1992年   3篇
  1991年   3篇
  1989年   1篇
  1988年   3篇
  1986年   1篇
  1985年   1篇
  1981年   1篇
  1970年   1篇
  1968年   1篇
排序方式: 共有1270条查询结果,搜索用时 15 毫秒
61.
Product-service integration is becoming a dominant contemporary trend, motivated by how technology can shape areas of potential product/service interactivity and triggers interactions. Since the role of technology differs from case to case, the strategic planning of product-service integration should focus on accommodating the real-life business situation. In response, this paper suggests a customisation framework for product-service roadmapping according to the technological interface involved, and provides practical guidance in its implementation. This framework consists of five steps in three main stages. The first deals with the structural determination of roadmapping, planning ??what to plan??, determining the role of technology and the roadmapping format. The second phase plans the functional determination, dealing the issue of ??how to plan??, including deciding on the relevant roadmapping procedures and methodology. Finally, the roadmap for product-service integration is developed. To illustrate the workings of proposed approach, six case examples are provided for different modes of integration, providing a practical illustration for product-service integration.  相似文献   
62.
焦作市经济转型研究   总被引:1,自引:0,他引:1  
<正>一、焦作市转型前经济状况焦作市位于河南省西北部,北依太行山,南抵黄河,因煤而兴。19世纪中叶,英国开始在焦作大规模开采煤炭,直到建国后,焦作一直是全国著名的"煤城",煤炭产业曾在全市国民经济中占据统治地位。但是,进入20世  相似文献   
63.
Analysis of an original Internet‐based survey reveals that debt holding is related to time discounting through: (i) present bias, measured by the degree of declining impatience in the generalized hyperbolic discount function; (ii) borrowing aversion, captured by a sign effect in that future losses are discounted at lower rates than future gains; and (iii) impatience, measured by the overall discount rate. Hyperbolic respondents are classified naïve if their answers reveal them to be time‐inconsistent procrastinators, and otherwise sophisticated. Naïve respondents with more steeply declining impatience are more likely to be debtors. The sign effect relates negatively to borrowing. Survey responses indicative of high or declining impatience are associated with credit card borrowing and other overborrowing indicators.  相似文献   
64.
65.
In the era of a graying workforce, individuals and their employers are concerned with the impact of the graying workforce on the level of engagement at work. Contrary to the myths about older workers being less engaged, statistics have shown that the level of engagement is higher as people age. Within the broad framework of conservation of resources theory in the area of work engagement, the current study aims to clarify how older workers are more engaged at work than younger workers. Building upon socioemotional selectivity theory and continuity theory from a life‐span perspective, we explain how individuals gain more resources as they age, including the abilities to regulate emotion and to maintain a career identity. We argue that this positive relationship between age and resources explains why older people have high levels of work engagement. We tested our predictions with a sample of 613 workers in the United States. The study demonstrates that well‐regulated emotion and strong commitment to career mediate the positive relationship between age and work engagement simultaneously. These findings contribute to the understanding of an aging workforce's engagement in the workplace. © 2016 Wiley Periodicals, Inc.  相似文献   
66.
Nonprofit organizations (NPOs) have become increasingly dependent on episodic volunteers (EVs), those that would help carry out an event with little training and expectation to commit to future events. Despite its importance to the survival of NPOs, the use of EVs with respect to fundraising has received little research focus. Furthermore, none of the existing studies identified examined how fundraising EVs differ from other EVs. This study seeks to contribute to our understanding of fundraising EVs using a global perspective. Data were generated using surveys distributed in seven countries, tallying more than 4,000 respondents. Variables included demographic characteristics, previous donation and volunteer history, motives, mode of volunteering, and overall experience. The data were analyzed by applying between-group (logistic regression on participation) and within-group analysis (ordered logistic regression on willingness to participate in the future). Data were further analyzed by examining differences by country. We found that country, gender, religion, income, employment, history of donations, mode of volunteering, and several motives, both intrinsic and extrinsic, were significant in the logistic regression analysis of participation in fundraising episodic volunteering. The ordered logistic analysis unexpectedly found that the only predictors to foster a willingness to engage again were the responsiveness of the event team and a desire to fulfill spiritual satisfaction. In recruiting and selecting EVs for fundraising events, NPOs should consider previous or current donors and those with regular volunteering experience and they should market volunteer opportunities towards those in search of spiritual fulfillment and meaning. Moreover, NPOs should prioritize quick and clear communication with fundraising EVs in order to foster a willingness to volunteer again. Lastly, NPOs should regularly assess for country-specific factors and contexts that may affect episodic volunteering in fundraising events. Our paper illustrates who fundraising EVs are, their motives, how they choose to volunteer, and what contributes to their willingness to volunteer again. Given the limited research on fundraising EVs, this study serves to help lay the foundation of research for this unique subgroup. Our aim was to not only address the dearth of literature but serve as a springboard for future research on fundraising EVs.  相似文献   
67.
Multiple regression analysis has become increasingly popular when appraising residential properties for tax purposes. Alternatively, most fee appraisers and real estate brokers use the traditional sales comparison approach. This study combines the two techniques and uses multiple regression to generate the adjustment coefficients used in the grid adjustment method. The study compares the combined grid-regression method with ordinary regression and defines the market conditions under which each method is likely to be more effective. The grid-regression method is found to be more accurate for relatively homogeneous housing markets, and the multiplicative percentage adjustment method (MPAM) the preferred approach.  相似文献   
68.
论城市商业银行的市场定位   总被引:3,自引:0,他引:3  
城市商业银行在化解风险中生存、在风险控制的实践中壮大、在改革创新中发展,已成为我国银行体系中的一支有生力量.但城市商业银行仍是一支很脆弱的力量,要想在激烈的业内竞争中茁壮成长,准确的市场定位是首要解决的问题之一.  相似文献   
69.
中国国际收支结构的变迁及启示   总被引:1,自引:0,他引:1  
本文通过对1982~2004年间中国国际收支一级账户结构、次级账户结构和差额平衡结构的考察发现:中国国际收支结构的发展历程带有明显的政策烙印;“双顺差”的形成和发展具有相当的可持续性;正在进行的人民币汇率机制改革短期内对国际收支结构难以发挥显著的作用,长期来看影响深远。  相似文献   
70.
青霉素亚砜的制备   总被引:1,自引:0,他引:1  
综述了以青霉素为原料,制备青霉素亚砚的2种重要方法。一种方法是先把青霉素制成青霉素羧酸酯,再氧化成青霉素亚现羧酸酯。另一种方法是直接把青霉素氧化成青霉素亚砜。  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