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   2618篇
  免费   63篇
财政金融   612篇
工业经济   252篇
计划管理   417篇
经济学   478篇
综合类   58篇
运输经济   15篇
旅游经济   43篇
贸易经济   480篇
农业经济   142篇
经济概况   184篇
  2021年   13篇
  2020年   41篇
  2019年   64篇
  2018年   59篇
  2017年   56篇
  2016年   53篇
  2015年   23篇
  2014年   65篇
  2013年   295篇
  2012年   85篇
  2011年   93篇
  2010年   75篇
  2009年   84篇
  2008年   101篇
  2007年   87篇
  2006年   79篇
  2005年   63篇
  2004年   62篇
  2003年   55篇
  2002年   60篇
  2001年   59篇
  2000年   52篇
  1999年   47篇
  1998年   45篇
  1997年   35篇
  1996年   47篇
  1995年   27篇
  1994年   37篇
  1993年   30篇
  1992年   36篇
  1991年   41篇
  1990年   24篇
  1989年   40篇
  1988年   28篇
  1987年   34篇
  1986年   33篇
  1985年   57篇
  1984年   52篇
  1983年   38篇
  1982年   47篇
  1981年   29篇
  1980年   26篇
  1979年   24篇
  1978年   25篇
  1977年   31篇
  1976年   26篇
  1975年   27篇
  1974年   35篇
  1973年   21篇
  1971年   14篇
排序方式: 共有2681条查询结果,搜索用时 15 毫秒
101.
A persistent myth in product innovation and management is that the failure rate of new products is 80% or higher. How does this false idea continue to displace the conclusions of empirical studies since 1977 that the new product failure rate is 40% or less? We examine the influence of a fallacy that encourages people's unthinking acceptance of ideas on new product failure rates and whose appeal rests primarily on an emotional, rather than a reasoned, argument. Self‐interest also plays a major role in keeping this myth alive.  相似文献   
102.
This paper investigates tourist perceptions of crime-safety and attitudes towards risk whilst visiting Table Mountain National Park (TMNP) in Cape Town in June and July 2008. The study examined survey data of 303 domestic and international tourists during their visit to TMNP. A linear regression analysis revealed that although visitors had concerns about their personal safety they are still likely to return to TMNP and recommend it to other people. In addition, visitor attitudes towards risk did not influence perceptions of crime-safety and its effect on their intentions to revisit or recommend TMNP. The results also show that respondent's individual characteristics such as age, nationality, and purpose of visit influenced their perceptions of crime-safety. Perceptions that TMNP is unsafe tended to increase with respondent's age. Respondents on holiday were more likely to perceive TMNP as safer than those on business or visiting friends and relatives. The study's findings add to the literature by offering more insight on tourist perceptions of crime-safety and attitudes towards risk and their impact on tourist behaviour. Various tourist-crime prevention measures to enhance visitor safety at national parks are also recommended to the tourism industry and law enforcement agencies.  相似文献   
103.
Recent learning-by-doing research highlights the importance of examining multiple measures of experience and their relationship to the performance of work teams. Our paper studies the role of individual experience, organizational experience, team leader experience, and experience working together on a team (team familiarity) in the context of improvement teams. To do so, we analyze successful and failed six sigma improvement team projects at a Fortune 500 consumer products manufacturer with multiple business groups. Such improvement project teams focus on deliberate learning, which differs from the primary focus of work teams.Our analysis uses archival data generated by these improvement project teams over a six year time span. Of the four experience variables we study, we find that team leader experience exhibits the strongest relationship with project success, followed by organizational experience. Further, in contrast to prior-related research on work teams, we find no relationship between individual experience or team familiarity and project success beyond that explained by team leader and organizational experience. These results suggest that a well-developed and deployed structured problem-solving process—characteristic of effective six sigma deployments—may reduce the importance of team familiarity in the context of improvement teams.  相似文献   
104.
This paper is an updated study on the causes of economic insecurity in the United States. The authors have constructed an aggregate composite index that measures objectively the major causes of economic insecurity (CEI) in the United States. The CEI index consists of 11 variables that can cause economic insecurity. The time period under investigation is 1960 through 2001. A rising CEI index indicates that the causes of economic insecurity in the United States have increased in relative importance, which results in an increase in economic insecurity. Conversely, a falling CEI index indicates that the causes of economic insecurity have declined in relative importance, which results in a reduction of economic insecurity. However, despite substantial economic growth in the American economy from 1960 through 2001, the CEI index overall showed little improvement. The major conclusion is that the CEI index was 9 percent higher in 2001 than it was in 1960. This result was due largely to the increase in divorce, violent crime, rising out-of-pocket expenditures for health care, inflation, and unemployment. The results for subperiods are dramatically different, and we think more interesting, than the overall results. During the 1960s, there was a small decline in the CEI index. The 1970s showed a dramatic increase in the CEI index, which reflected both high unemployment rates and inflation rates during this period. The 1980s experienced fluctuating levels in the index but little overall change, and the 1990s experienced a sharp decline in the CEI index due largely to a robust economy. The CEI index has increased more recently, which reflects largely the recent 2001 business recession. The correlation coefficient of the CEI index with the University of Michigan's well-known Index of Consumer Sentiment is ?676. This figure shows that as the CEI index rises, consumer sentiment about the American economy becomes pessimistic and negative.  相似文献   
105.
106.
The literature disagrees on the link between so-called busy boards (where many independent directors hold multiple board seats) and firm performance. Some argue that busyness certifies a director’s ability and that such directors are value enhancing. Others argue that “over-boarded” directors are ineffective and detract from firm value. We find evidence that (1) the disparate results in prior work stem from differences in both sample composition and empirical design, (2) on balance the results suggest a negative association between board busyness and firm performance, and (3) the inclusion of firm fixed effects dramatically affects the conclusions drawn from, and the explanatory power of, multivariate analyses. We also explore alternative empirical definitions of what constitutes a busy director and find that commonly used proxies for busyness perform well relative to more complex alternatives.  相似文献   
107.
The article reviews the evidence on the role of education ineconomic development, with emphasis on issues that have appearedin the literature in the past two decades: the contributionof education to economic growth, the screening hypothesis, thesegmentation of the labour market, the return to investmentin schooling, and the effects of education on unemployment andincome distribution. It concludes with an optimistic assessmentof the contribution of educational investment to the developmentprocess, especially when such investment is targeted to primaryschooling, general education, and improvements in the qualityof instruction and when it is accompanied by cost-recovery atthe higher levels of education.   相似文献   
108.
We test the proposition that announcements of open market stock repurchases improve the flow of positive information regarding the firm's prospects, particularly for financially weak firms. For financially strong firms with already good prospects for cash flows, the role of stock repurchases is less important. We provide evidence for an inverse relationship between financial risk, measured by bond rating, and the magnitude of stock repurchase-induced abnormal returns. Results also suggest that the value of information implied by announcements of open market repurchases about increases in cash flows and leverage, is more important for financially weak firms than for financially strong firms.  相似文献   
109.
We provide an explanation for loan commitments unrelated to borrower creditworthiness. In our model, banks can use loan commitments to reduce uncertainty regarding their own future funding needs. Given a cost advantage to banks that can acquire such information, there exists an equilibrium demand for commitments by riskneutral firms. The purchase of the loan commitment and the choice of contract terms reveals the buyer's private information regarding future credit needs. In order to ensure the sorting of the a priori indistinguishable applicants according to their private information, we show that a usage fee applied to the commitment holder's unused credit line is necessary.  相似文献   
110.
An overview is provided of the situation of children throughout the world. It is then argued that the root of children's problems is not absolute poverty, but the priorities with which the powerful treat children. Suggestions are made as to how families, communities and social agencies should fit together in fulfilling responsibilities towards children. After reviewing international responses, the need for a new Global Children's Agency is discussed. This top-down approach complements other strategies for promoting child survival based on empowerment of the weak.  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