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   231篇
  免费   12篇
财政金融   23篇
工业经济   30篇
计划管理   28篇
经济学   19篇
综合类   2篇
运输经济   2篇
贸易经济   54篇
农业经济   2篇
经济概况   83篇
  2023年   2篇
  2022年   3篇
  2021年   2篇
  2019年   5篇
  2018年   7篇
  2017年   8篇
  2016年   7篇
  2015年   8篇
  2014年   7篇
  2013年   20篇
  2012年   10篇
  2011年   6篇
  2010年   9篇
  2009年   11篇
  2008年   9篇
  2007年   7篇
  2006年   7篇
  2005年   5篇
  2004年   3篇
  2003年   1篇
  2002年   3篇
  2001年   3篇
  2000年   2篇
  1998年   2篇
  1997年   1篇
  1995年   4篇
  1994年   3篇
  1993年   4篇
  1992年   3篇
  1991年   4篇
  1990年   2篇
  1989年   4篇
  1988年   2篇
  1987年   3篇
  1986年   1篇
  1985年   3篇
  1984年   6篇
  1983年   3篇
  1981年   3篇
  1980年   4篇
  1979年   4篇
  1978年   3篇
  1977年   4篇
  1976年   2篇
  1975年   4篇
  1974年   8篇
  1973年   9篇
  1972年   4篇
  1971年   5篇
  1970年   2篇
排序方式: 共有243条查询结果,搜索用时 15 毫秒
51.
Given the growing popularity of the open innovation model, it is increasingly common to source knowledge for new product ideas from a wide range of actors located outside of organizational boundaries. Such open search strategies, however, might not always be superior to their closed counterparts. Indeed, widening the scope of knowledge sourcing at the ideation stage typically comes at a price given the substantial monetary and nonmonetary costs often incurred in the process of identifying, assimilating, and utilizing external knowledge inputs. Considering both the benefits and costs of search openness, the authors develop a project‐level contingency model of open innovation. This model suggests that search openness is curvilinearly (taking an inverted U‐shape) related to new product creativity and success. They hence assume that too little as well as too much search openness at the ideation stage will be detrimental to new product outcomes. Moreover, they argue that the effectiveness of open search strategies is contingent upon the new product development (NPD) project type (typological contingency), the NPD project leader (managerial contingency), and the NPD project environment (contextual contingency). To test these propositions empirically, multi‐informant data from 62 NPD projects initiated in the English National Health Service (NHS) were collected. The econometric analyses conducted provide considerable support for a curvilinear relationship between search openness and NPD outcomes as well as for the hypothesized contingency effects. More specifically, they reveal that explorative NPD projects have more to gain from search openness at the ideation stage than their exploitative counterparts. Moreover, the project‐level payoff from search openness tends to be greater, when the project leader has substantial prior innovation and management experience, and when the immediate work environment actively supports creative endeavors. These findings are valuable for NPD practice, as they demonstrate that effective knowledge sourcing has much to contribute to NPD success. In particular, pursuing an open search strategy might not always be the best choice. Rather, each NPD project is in need of a carefully tailored search strategy, effective leadership, and a supportive climate, if the full value of external knowledge sourcing is to be captured.  相似文献   
52.
In einer B2B-Studie von Marketing Sherpa (2008) gaben 80 % der Entscheider an, dass sie ihre Lieferanten selbst gefunden haben. Nur 20 % wurden von den Anbietern angesprochen. Aktive Interessenten recherchieren geeignete L?sungen und nehmen den Kontakt mit dem Anbieter zunehmend selbst auf. Was k?nnen Anbieter tun, um w?hrend der Entscheidungsvorbereitung eines aktiven Interessenten aufzufallen und kontaktiert zu werden?  相似文献   
53.
54.
From a practical perspective, (arguably) most consumer decisions are not made in isolation of the households in which consumers are inserted, yet we commonly treat them econometrically as if they were. The purpose of this workshop was to take some initial steps in defining needed research in household decision making that structurally accounts for goal sharing, utility interdependence, taste heterogeneity, choice set formation, power structures, group size and composition, and so forth. We also considered conditions under which aggregation of tastes, utility and choices might occur and make sense from both behavioral and modeling perspectives.  相似文献   
55.
Real exchange rate movements in the transition economies during the initial transition period were unusually large by the standards of other economies and periods. Using cross-sectional evidence, this paper documents how real exchange rates were generally misaligned at the onset of the transition and how most of this misalignment was eliminated over a relatively short period. Turning to the time series dimension, the paper shows that estimates from a consensus-type single-equation model of the real exchange rate are well-behaved and provide a good fit for exchange rate movements in the early transition period. The results highlight the role of productivity-driven real exchange rate movements that can be interpreted as reflecting both the impact of the structural transformation process on productivity in the tradables sector per se and the effects of changes in tradables versus non-tradables productivity. Furthermore, the results show that the relationship between productivity and real exchange rates holds both when productivity is increasing and when it is falling.  相似文献   
56.
We consider an illiquid financial market where a risk averse investor has to liquidate a portfolio within a finite time horizon [0, T] and can trade continuously at a traditional exchange (the “primary venue”) and in a dark pool. At the primary venue, trading yields a linear price impact. In the dark pool, no price impact costs arise but order execution is uncertain, modeled by a multidimensional Poisson process. We characterize the costs of trading by a linear‐quadratic functional which incorporates both the price impact costs of trading at the primary exchange and the market risk of the position. The solution of the cost minimization problem is characterized by a matrix differential equation with singular boundary condition; by means of stochastic control theory, we provide a verification argument. If a single‐asset position is to be liquidated, the investor slowly trades out of her position at the primary venue, with the remainder being placed in the dark pool at any point in time. For multi‐asset liquidations this is generally not the case; for example, it can be optimal to oversize orders in the dark pool in order to turn a poorly balanced portfolio into a portfolio bearing less risk.  相似文献   
57.
58.
Die vorliegende Studie analysiert für 87 Neuprodukteinführungen (NPE) und Auslandsmarkteintritte (AME) von Telekommunikations(TK)-Diensteanbietern in Deutschland, zu denen 42 Schlüsselinformanten in einer schriftlichen Befragung Auskunft gaben, (1) inwieweit deren zeitliche Eintrittspositionierung durch Marktcharakteristika und Unternehmensressourcen erkl?rbar ist sowie (2) inwieweit und gegebenenfalls unter welchen unternehmensexternen und -internen Situationsbedingungen deren Markteintrittstiming mit dem wahrgenommenen Eintrittserfolg assoziiert ist. Ein früher Markteintritt wurde dann realisiert, wenn die Wettbewerbsintensit?t im adressierten Gesch?ft niedrig und das Budget für den Expansionsschritt überdurchschnittlich ausfielen. Zwischen dem Markteintrittstiming und der Beurteilung des Eintrittserfolgs bestand ein nicht monotoner, umgekehrt U-f?rmiger Zusammenhang: Frühe Folger wiesen signifikant bessere Erfolgswerte auf als Pioniere und sp?te Folger, deren Erfolgsniveaus nicht signifikant divergierten. In einer Industrie, die durch starke externe Netzeffekte gepr?gt ist, fallen offenbar die Nachteile eines Markteintritts als Pionier oder sp?ter Folger st?rker ins Gewicht als die Vorteile dieser beiden zeitlichen Eintrittspositionierungen. Unabh?ngig vom Markteintrittstiming wurden NPE/AME von TK-Unternehmen als erfolgreicher eingestuft, wenn sie sich in einen Markt mit stark wachsender Nachfrage und aufeinander abgestimmt (re)agierenden Wettbewerbern mit qualitativ überdurchschnittlichen, abw?rtskompatiblen, erprobbaren und wenig erkl?rungsbedürftigen TK-Diensten engagierten.  相似文献   
59.
60.
The view that the role of European Works Councils (EWCs) is shaped predominantly by national industrial relations (IR) traditions in the company's country of origin derives largely from the experience of EWCs in companies based in continental Europe. This article argues that a more differentiated approach to the influence of national IR factors on EWCs needs to be developed to take account of the circumstances of companies headquartered in the UK and the US, whose national IR arrangements do not provide a strong institutional model for the EWC and, in the case of US‐based companies, where headquarters management has little or no direct involvement in the EWC. Findings from comparative case studies of EWCs in eight UK‐ and US‐based multinationals suggest that their character is shaped by the interplay between ‘country‐of‐origin’ factors,‘country‐of‐location’ factors and structural, company‐specific considerations.  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