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Decisions in Economics and Finance - We derive sufficient conditions for non-emptiness of the efficient sets for stochastic dominance relations, usually employed in economics and finance. We do so... 相似文献
3.
The Road to Sustainability: Exploring the Process of Corporate Environmental Strategy Over Time 下载免费PDF全文
Giorgos Papagiannakis Irini Voudouris Spyros Lioukas 《Business Strategy and the Environment》2014,23(4):254-271
We explore corporate environmental strategy over time, investigating the patterns of evolving environmental investment decisions. Longitudinal case studies provide evidence that environmental strategy evolves through a feedback process, wherein outcomes of earlier decisions have an impact on subsequent decisions. Specifically, positive feedback from outcomes like innovation triggers higher goals, enhancing the undertaking of advanced investments, whereas negative feedback from outcomes, such as increased costs, decelerates the adoption of further investments. The study points to an emergent view of environmental strategy, where capabilities that are gradually developed in concomitance with environmental outcomes lead to an upgrading of environmental goals, thus triggering the feedback process. The process eventually culminates in higher levels of environmental conduct, being more and more integrated with business strategy and competitive advantage. Managers' values and environmental attitudes influence environmental decisions and actions, affecting the acceleration of the feedback process and the magnitude of responses. Managerial implications are discussed. Copyright © 2013 John Wiley & Sons, Ltd and ERP Environment 相似文献
4.
Spyros Arvanitis Florian Seliger Martin Woerter 《Oxford bulletin of economics and statistics》2020,82(5):1017-1041
We study the relationship between a patent-based measure of knowledge spillovers that calculates technological proximity based on technologically relevant firms and innovation success. We find – for a representative sample of Swiss firms – that knowledge spillovers have a positive and significant association with the commercial success of innovative products. The paper shows the importance of market conditions for the relationship of spillovers with innovation performance: It is only positive and significant in markets with a medium number of competitors in the main product market, but not in monopolistic or polypolistic market structures. 相似文献
5.
Spyros Galanis 《Journal of Public Economic Theory》2021,23(1):53-68
In environments with expected utility, it has long been established that speculative trade cannot occur and that the value of public information is negative in economies with risk-sharing and no aggregate uncertainty. We show that these results are still true even if we relax expected utility, so that either Dynamic Consistency (DC) or Consequentialism is violated. We characterize no speculative trade in terms of a weakening of DC and find that Consequentialism is not required. Moreover, we show that a weakening of both DC and Consequentialism is sufficient for the value of public information to be negative. We therefore generalize these important results for convex preferences which contain several classes of ambiguity averse preferences. 相似文献
6.
Spyros Makridakis Evangelos Spiliotis Vassilios Assimakopoulos 《International Journal of Forecasting》2018,34(4):802-808
The M4 competition is the continuation of three previous competitions started more than 45 years ago whose purpose was to learn how to improve forecasting accuracy, and how such learning can be applied to advance the theory and practice of forecasting. The purpose of M4 was to replicate the results of the previous ones and extend them into three directions: First significantly increase the number of series, second include Machine Learning (ML) forecasting methods, and third evaluate both point forecasts and prediction intervals. The five major findings of the M4 Competitions are: 1. Out Of the 17 most accurate methods, 12 were “combinations” of mostly statistical approaches. 2. The biggest surprise was a “hybrid” approach that utilized both statistical and ML features. This method’s average sMAPE was close to 10% more accurate than the combination benchmark used to compare the submitted methods. 3. The second most accurate method was a combination of seven statistical methods and one ML one, with the weights for the averaging being calculated by a ML algorithm that was trained to minimize the forecasting. 4. The two most accurate methods also achieved an amazing success in specifying the 95% prediction intervals correctly. 5. The six pure ML methods performed poorly, with none of them being more accurate than the combination benchmark and only one being more accurate than Naïve2. This paper presents some initial results of M4, its major findings and a logical conclusion. Finally, it outlines what the authors consider to be the way forward for the field of forecasting. 相似文献
7.
Stephen Jen Spyros hndrcopoulos 《海外经济评论》2008,(45)
【摩根士丹利9月29日】从2005~2006年到2007~2008年,新兴市场的私人资本净流入额从5500亿美元/年左右猛增至7500亿美元/年左右。2007年,私人资本净流入已达到新兴市场资本接受国GDP的6%,从而超过了1997年亚洲货币危机前夜的水平。然而,就2009年而言,鉴于全球经济增长速度与资本流动之间的关系,全球经济减速有可能导致新兴市场的资本流入大幅下滑,从而回落到5500亿美元左右。面对这种风险,不同新兴市场经济体的脆弱程度存在差异, 相似文献
8.
Stephen Jen Spyros Andreopoulos 《海外经济评论》2008,(38)
【摩根士丹利8月25日】2月份我们曾论证说,中国将打破“奥运魔咒”(Olympic Curse)。虽然我们仍然坚持此观点,但另一方面也认为,奥运会后,中国存在出现“增长恐慌”(growth scare)的风险。即使这次经济减速非常和缓,也很有可能加重投资者的不安,从而对亚洲市场产生明显影响。鉴于此,我们对日本之外亚洲(AXJ)货币的态度更加悲观。 相似文献
9.
In this study we investigate the impact of early stage venture capital on innovation activities of start-ups. This is done based on a cohort of start-ups that is representative of all firms founded in Switzerland in 1996/97, as recorded by a census of the Swiss Federal Statistical Office for this period. We analyze not only the impact of early stage venture capital on innovation performance 3 years after firm foundation, but also 6 and 9 years after firm start, respectively, for those firms that survived and reported continuously innovation activities (persistence of innovation). The results support neither the hypothesis of a positive impact on initial innovation activities nor the hypothesis of a positive time-persistent effect on innovation performance of start-ups. 相似文献
10.
While previous studies on mergers and acquisitions (M&As) mostly relied on large firms, our study is based on a sample that includes all Swiss M&As that took place in the period 2006–2008, mostly of which have been SMEs. We investigate the firm characteristics that determine the innovation and economic performance of M&As. The performance measures are based on firms’ assessments. These measures are regressed on a series of possible determining factors as postulated in existing theoretical and empirical literature. M&A performance is primarily affected by specific M&A characteristics, but not by general market characteristics such as demand development or competition conditions. Rather astonishingly, it is also not affected by firm characteristics such as capital intensity, human capital endowment and firm size. There is an interesting exception: innovation activities. This means that, with the remarkable exception of innovation activities, the level of M&A performance is determined primarily by factors of the M&A process itself. 相似文献