Production technologies and financial performance: The effect of uneven diffusion among competitors   总被引：1，自引：0，他引：1  

Lucio Fuentelsaz  Jaime Gómez  Sergio Palomas 《Research Policy》2012,41(2):401-413

We explore the impact of a production technology on financial performance from the perspectives of technology diffusion and competitive strategy theory. We analyse how diffusion at firm and market levels influences the returns from the technology. We suggest that firm heterogeneity in the level of technology use leads to competitive advantages for relatively intensive adopters. We empirically test our propositions through the analysis of the diffusion of the Automated Teller Machine among Spanish savings banks between 1986 and 2004. Our results show that it is not the absolute but the relative level of use that drives the impact of the technology on profitability. Furthermore, as the technology is more intensively deployed in the market, the profitability of every firm decreases. Interestingly, in our empirical setting, this negative effect eventually leads to an aggregate negative impact on the profitability of the savings banks.  相似文献   

Neurophysiological correlates of interference control and response inhibition processes in children and adolescents engaging in open- and closed-skill sports     

Sebastian Ludyga  Manuel Mücke  Christian Andra  Markus Gerber  Uwe Pühse 《运动与健康科学(英文)》2022,11(2):224-233

Background:Accumulating evidence suggests that sports participation promotes the development of inhibitory control,but the influences of the sports category and inhibition type still remain unclear.The categorization of sports based on the open-skill(externally paced)and closed-skill(self-paced)continuum allows for the integration of the environment as a factor contributing to sports-related benefits for inhibitory control.Methods:Cross-sectional data from different studies were combined(n=184)to examine the association between open-and closed-skill sports and cognitive control processes related to interference control and response inhibition.Participants(aged 9-14 years)filled in 7-day physical activity recall protocols and completed a Stroop Color-Word or a Go/NoGo task.The N200,N450,and P300 components of event-related potentials elicited by these tasks were recorded using electroencephalography.Results:Partial correlations supported the belief that time spent in open-skill sports was related to higher performance on inhibition trials.Additionally,path analyses revealed an association between this sports type and a greater negativity in the N200 and N450 amplitudes in both the full sample and group-level analyses.In contrast,no relation was found between sports type and P300 amplitude.Conclusion:The findings suggest that only the engagement in open-skill sports is associated with more effective conflict monitoring and higher performance on tasks demanding inhibitory control.  相似文献   

Sensitivity to rhythmic parameters in dyslexic children: a comparison of Hungarian and English     

Zsuzsanna Surányi  Valéria Csépe  Ulla Richardson  Jennifer M. Thomson  Ferenc Honbolygó  Usha Goswami 《Reading and writing》2009,22(1):41-56

It has been proposed that sensitivity to the parameters underlying speech rhythm may be important in setting up well-specified phonological representations in the mental lexicon. However, different acoustic parameters may contribute differentially to rhythm and stress in different languages. Here we contrast sensitivity to one such cue, amplitude envelope onset (rise time), in dyslexic and normally-developing children in two languages, Hungarian and English, ages from 7 to 11. Dyslexic and control children received phonological tasks, reading and spelling tasks and auditory processing tasks. While sensitivity to rise time was related to phonological representation in both languages, clear differences were found between languages. It is suggested that these differences may reflect differential language-specific weighting of different acoustic cues to rhythm and stress.

Valéria CsépeEmail:

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Equality of opportunities in Spanish higher education     

Marta Rahona López 《Higher Education》2009,58(3):285-306

In the past few decades, there has been a sharp increase in the number of students attending higher education institutions in Spain. Many commentators believe that this expansion is associated with greater equality of opportunities as more university places offer greater potential for the advancement of students from poorer backgrounds. Unfortunately, this argument is not always true. In fact, there is empirical evidence that the expansion in higher education system disproportionately benefits children from relatively rich and well educated families. In that context, the purpose of this paper is to analyse the possible effects of socioeconomic background on the decision to complete a degree before leaving the educational system in Spain. Taking the data from the Spanish module data on school to work transitions, I estimate several logit models in order to detect the influence of personal and regional characteristics on the educational decisions. The results show that, in spite of the disappearance of universities for only the elite, socioeconomic variables heavily influence the demand for university education, so the equality of opportunities in this educational level has not been completely achieved.

Marta Rahona LópezEmail:

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A Mirage of Change: Visibility of Politicians on TVE during the 2015 and 2016 General Elections     

José María García-de-Madariaga  José Antonio Navarro Moreno  Agustín Olmo López 《Journalism Practice》2020,14(3):339-357

ABSTRACT

The use of strategies to enhance the media visibility of politicians intensifies above all at election time and their focus is chiefly television due to the fact that it still has the greatest power to sway voters. Thus, based on a content analysis of the evening news on Televisión Española (TVE) and 18 semi-structured in-depth interviews with professionals working at the Spanish public broadcaster, the airtime that politicians were given was established to assess whether it had fulfilled its obligation as regards independence and pluralism at two crucial moments for Spanish politics: the period prior to the election calls, the pre-campaign periods and the official campaigns before the general elections held on 20 December 2015 and 26 June 2016. Both were unique in their own way: on the one hand, the debut of new political parties with the potential to win a large number of seats in Parliament; and, on the other, despite the fact that in just six months the party in power had lost its absolute majority and there were still no visible signs of change at TVE, it is still worth examining the variations in news treatment prior to both elections.  相似文献   

Breaking away to find a way: poverty and school failure in a Spanish adolescent life-history     

I. Calderón-Almendros 《British Journal of Sociology of Education》2011,32(5):745-762

This article is part of a biographical research study, and explores the social path that an adolescent from a marginal background in Malaga (Spain) has travelled throughout his life. The research shows a class differentiation that divides society in two: you, who control the means of production, impose your culture, and define the policy and the school; and we, who live in poor houses and districts, learn in the street and do things that are worthy of punishment – the bad ones. School failure, the result and cause of this division, leads to social failure, provoking ‘guerrillas against the good ones’ (teachers, peers, guards, police, judges, etc.) of youngsters who have learned to devalue themselves as people and as a group: youngsters who have to break away to find a way.  相似文献   

Evolution and social dynamics of acknowledged research groups     

Julián López-Yáñez  Mariana Altopiedi 《Higher Education》2015,70(4):629-647

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Publisher's Note: “Inducing chemotactic and haptotactic cues in microfluidicdevices for three-dimensional in vitro assays” [Biomicrofluidics 8, 064122 (2014)]     

O. Moreno-Arotzena  G. Mendoza  M. Cóndor  T. Rüberg  J. M. García-Aznar 《Biomicrofluidics》2014,8(6)

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First Approach to the Analytical Characterization of?Barrel-Aged Grape Marc Distillates Using Phenolic Compounds and Colour Parameters     

Raquel Rodríguez-Solana  José Manuel Salgado  José Manuel Domínguez  Sandra Cortés-Diéguez 《Food Technology and Biotechnology》2014,52(4):391-402

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Beyond the body and external representations … the brain. A commentary on the article Learning beyond the body by Juan-Ignacio Pozo / Más allá del cuerpo y de las representaciones externas … el cerebro. Un comentario sobre el artículo Aprender más allá del cuerpo de Juan-Ignacio Pozo     

Manuel de Vega 《Infancia y Aprendizaje》2017,40(4):701-712

My commentary is based on three matters derived from Ignacio Pozo’s article. First, I present my defence of the cognitive research that Pozo criticizes and characterizes as methodologically aseptic and disembodied. Second, I discuss my doubts regarding the author’s arguments on external representations overcoming the limitations of embodied cognition. Third, I examine the neuroscience perspective in order to clarify the representational debate.  相似文献