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   685篇
  免费   31篇
财政金融   81篇
工业经济   45篇
计划管理   122篇
经济学   261篇
综合类   2篇
运输经济   11篇
旅游经济   11篇
贸易经济   97篇
农业经济   26篇
经济概况   60篇
  2023年   12篇
  2022年   12篇
  2021年   9篇
  2020年   28篇
  2019年   27篇
  2018年   27篇
  2017年   34篇
  2016年   29篇
  2015年   18篇
  2014年   30篇
  2013年   82篇
  2012年   45篇
  2011年   29篇
  2010年   30篇
  2009年   29篇
  2008年   24篇
  2007年   23篇
  2006年   25篇
  2005年   16篇
  2004年   14篇
  2003年   14篇
  2002年   13篇
  2001年   12篇
  2000年   12篇
  1999年   12篇
  1998年   8篇
  1997年   5篇
  1996年   12篇
  1995年   5篇
  1994年   5篇
  1993年   4篇
  1992年   3篇
  1991年   6篇
  1990年   3篇
  1989年   3篇
  1987年   5篇
  1986年   4篇
  1985年   5篇
  1984年   5篇
  1983年   6篇
  1981年   7篇
  1980年   7篇
  1979年   1篇
  1978年   2篇
  1976年   3篇
  1975年   2篇
  1974年   2篇
  1973年   2篇
  1971年   1篇
  1967年   1篇
排序方式: 共有716条查询结果,搜索用时 22 毫秒
1.
Journal of Business Ethics - Opportunistic behaviors are considered ethically and strategically troublesome since they disrupt otherwise mutually beneficial relationships. Previous literature has...  相似文献   
2.
3.
We study the optimal execution problem with multiplicative price impact in algorithmic trading, when an agent holds an initial position of shares of a financial asset. The interselling decision times are modeled by the arrival times of a Poisson process. The criterion to be optimized consists in maximizing the expected net present value of the gains of the agent, and it is proved that an optimal strategy has a barrier form, depending only on the number of shares left and the level of the asset price.  相似文献   
4.
This study analyzes the effect of informational clues and Chef-Cuisine congruence, and their relation to advertisements for a Japanese restaurant. Two experiments were conducted with 171 consumers. Findings supported the following: Congruence between a Japanese restaurant and Japanese Chef results in higher approval ratings than the combination of Japanese restaurant with Brazilian Chef. However, if the advertisement states that the restaurant has won an award, then Chef-restaurant congruence is no longer an important factor in consumers’ evaluations.  相似文献   
5.
This paper exploits the introduction of the first regularized patent system, which appeared in the Venetian Republic in 1474, to examine the factors shaping inventors’ propensity to use a new form of intellectual property. We combine detailed information on craft guilds and patents in Renaissance Venice and show a negative association between patenting activity and guild statutory norms that strongly restricted entry and price competition. Our analysis shows that the heterogeneity in patenting activity documented by the industrial organization literature is not a special feature of modern technologies, but is rather a persistent phenomenon affected by market power.  相似文献   
6.
This study addresses one of the most basic research questions investigated in the Open Innovation (OI) literature: how open are firms? This question has remained partially unanswered given the challenges encountered by empirical research in assessing the relevance of specific OI practices within the OI model, as well as the types of activities perceived by managers as OI benefits or concerns. To provide an answer to this question, we suggest a framework using Item Response Theory to improve over current measures of firms' openness and test it on a sample of 383 technology‐based SMEs. Our theoretical model conceives openness as an instance of how firms make decisions regarding the adoption of different OI practices based on their evaluation of OI benefits and concerns. Focusing on the relationship between firm‐level differences in terms of openness and the types of OI practices adopted by these firms, we show that significantly different levels of ‘OI maturity’ are required to broaden the scope of external partnerships and to shift from non‐pecuniary OI modes (relation‐based approaches) toward pecuniary (transaction‐based) practices. Our results have relevant implications for the OI literature and provide new managerial insight into OI adoption.  相似文献   
7.
Long considered a ‘Ricardian socialist’, Thomas Hodgskin is rarely read as the perceptive observer of the Industrial Revolution that he was. His most famous pamphlet, Labour Defended Against the Claims of Capital, has been interpreted as anticipating some central tenets of Marxism. If we abandon this well‐established interpretation, however, we can better appreciate Hodgskin's acute reading of the process of industrialisation unfolding before his eyes. Unlike most socialists, Hodgskin had no sympathy for machine breakers and actually understood the importance of the entrepreneurial function. Moreover, he thought mechanisation and improvement in the tools available for workers would not dispossess them but, on the contrary, would raise their living standards. Hodgskin's ‘optimism’ shows that in the 1820s someone who was deeply concerned with the future of the working classes could nonetheless develop a reasoned sympathy for industrialisation — rather than merely oppose technological innovation and long for a mythical past.  相似文献   
8.
The effect of different supplementary feeding rates for grazing cattle on high-altitude pastures dynamics was evaluated. A field experiment was carried out during three years in a subalpine pasture area of the Eastern Alps. The investigated pasture area was 40?ha, located between 1820 and 2230?m?a.s.l. Two paddocks were chosen in the experiment and two herds of 12 cattle each were kept in the two enclosures for 5 weeks. For the first herd (HS), the supplementary feeding rate was 4.8?kg?OM?head?1 per day, while for the second herd (LS), the rate was 1.6?kg?OM?head?1 per day. The amount of herbage consumed by each cattle was determined using the n-alkane technique. To monitor the pasture vegetation dynamics, eight metal exclusion cages were placed in each paddock to determine herbage growth, utilization rates, vegetation composition and animal grazing selectivity. Grazing behaviour of dairy cattle, in terms of herbage intake and species selection was affected by the different feeding rates. Cattle grazing Paddock HS consumed 1.9?kg?OM?day?1 of herbage less than Paddock LS. In the LS paddock, cattle grazed higher phytomass rates. When the animals were fed by higher concentrate rates, a more selective grazing seemed to significantly increase the pasture necromass component. The lower grazing selectivity favoured the development of species as Nardus stricta and Deschampsia caespitosa, which are well known for their low palatability. Distinct vegetation dynamic patterns were observed, with a reduction of hair grass and an increase of legumes in the Paddock LS.  相似文献   
9.
Quality & Quantity - Machine learning (ML), and particularly algorithms based on artificial neural networks (ANNs), constitute a field of research lying at the intersection of different...  相似文献   
10.
During patent litigation, pay‐for‐delay (P4D) deals involve a payment from a patent holder of a branded drug to a generic drug manufacturer to delay entry and withdraw the patent challenge. In return for staying out of the market, the generic firm receives a payment, and/or an authorized licensed entry at a later date, but before the patent expiration. We examine why such deals are stable when there are multiple potential entrants. We combine the first‐mover advantage for the first generic with the ability of the branded manufacturer to launch an authorized generic (AG) to show when P4D deals are an equilibrium outcome. We further show that limiting a branded firm's ability to launch an AG before entry by a successful challenger will deter such deals. However, removing exclusivity period for the first generic challenger will not.  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