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排序方式: 共有139条查询结果,搜索用时 15 毫秒
1.
In this article, we attempt to extend and nuance the debate on intellectual property (IP) strategy, appropriation, and open innovation in dynamic and systemic innovation contexts. We present the case of four generations of mobile telecommunications systems (covering the period 1980–2015), and describe and analyze the co-evolution of strategic IP management and innovation ecosystems. Throughout this development, technologies and technological relationships were governed with different and shifting degrees of formality. Simultaneously, firms differentiated technology accessibility across actors and technologies to benefit from openness and appropriation of innovation. Our analysis shows that the discussion of competitiveness and appropriability needs to be expanded from the focal appropriability regime and complementary assets to the larger context of the innovation ecosystem and its cooperative and competitive actor relations, with dispersed complementary and substitute assets and technologies. Consequently, the shaping of complementary and substitute appropriability regimes is central when strategizing in dynamic and systemic innovation contexts. This holds important implications for the management of open innovation, innovation ecosystems, platforms, and coopetition. 相似文献
2.
In the Netherlands, with its remarkably high disability rates, a new phenomenon seems to be emerging. Growing disability rates in the past few years have been exclusively caused by the growing inflow of women into the disability schemes. Comparing the Dutch situation internationally shows that roughly the same problem seems to exist in those countries in which there is a more general problem of large inflow into disability. Women are overrepresented in these arrangements. The Dutch literature shows that there are many factors (both work- and non-work-related) that contribute to a larger push of women towards disability. We conclude that the benefit system can be seen as a sort of "filter". If the filter is weak, many persons will enter disability. If the pressure on women to enter is larger (or the forces to stop women from entering disability smaller), then inflow risks for women will be higher. 相似文献
3.
Leontine van de Ven Marcel Post Luc de Witte Wim van den Heuvel 《Disability & Society》2005,20(3):311-329
The concept of integration is not well defined. It not known how people with disabilities experience integration. In this study qualitative methods were used. The aim of the article is to define a model of successful integration based on the perspectives of people with disabilities and people within their social environment. Integration consists of five elements: functioning ordinarily without receiving special attention, mixing with others that are not disabled, taking part in society, trying to realize one’s potential and directing one’s own life. Integration is obtained through a process of interaction between a person with a disability and society. This process is influenced by personal, societal and support factors. The individual with a disability and society have a mutual responsibility with respect to integration. 相似文献
4.
Marloes de Lange Maarten H. J. Wolbers Maurice Gesthuizen Wout C. Ultee 《Revue europeenne de demographie》2014,30(2):161-185
In this paper, we study the impact of macro- and micro-economic uncertainty on family formation between 1970 and 2000 in The Netherlands. Using data of the Family Survey Dutch Population, we analysed the monthly hazard rates of experiencing the transition into first union, first marriage and parenthood after the start of the relationship of 365 male and 364 female partners by applying piecewise-constant exponential models. The results show that macro-economic uncertainties, i.e. high unemployment rates, lead to postponement of the first union and marriage, but not of the first child. In addition, we found that this relationship is not interpreted by individual-level employment insecurity, i.e. temporary employment or unemployment, which does not seem to prevent people from making long-term family commitments. Although hypothesized, we did not find that the negative effects of macro- and micro-level insecurities on family formation reinforce each other or that they vary between individuals with different educational qualifications. 相似文献
5.
We use a quantitative model to study the implications of European integration for welfare and net migration flows across 1,280 European regions. The model suggests that an increase of trade barriers to the level of 1957 reduces welfare by about 5%–8% on average, depending on the presumed trade elasticity. However, remote regions may face initial welfare losses of up to 10%. These heterogeneous welfare effects cause estimated net migration of 1.9% of the population to the European geographic center implying that the dismantling of trade barriers in Europe has led to a more homogeneous spatial distribution of economic activity. With regard to the Brexit, we find moderate welfare losses for the United Kingdom of 1.05% in the most pessimistic scenario while continental Europe's welfare declines by 0.41%. (JEL F15, R12, R13, R23) 相似文献
6.
Astrid M. G. Poorthuis Sander Thomaes Marcel A. G. van Aken Jaap J. A. Denissen Bram Orobio de Castro 《Social Development》2014,23(4):770-783
The transition from primary to secondary school challenges children's psychological well‐being. A cross‐transitional longitudinal study (N = 306; mean age = 12.2 years) examined why some children's self‐esteem decreases across the transition whereas other children's self‐esteem does not. Children's expected social acceptance in secondary school was measured before the transition; their actually perceived social acceptance was measured after the transition. Self‐esteem and Big Five personality traits were measured both pre‐ and posttransition. Self‐esteem changed as a function of the discrepancy between children's expected and actually perceived social acceptance. Furthermore, neuroticism magnified self‐esteem decreases when children's ‘hopes were dashed'—when they experienced disappointing levels of social acceptance. These findings provide longitudinal support for sociometer theory across the critical transition to secondary school. 相似文献
7.
Marcel de Toledo Vieira Maria de Fátima Salgueiro Peter W. F. Smith 《Journal of applied statistics》2016,43(7):1310-1321
We investigate the impacts of complex sampling on point and standard error estimates in latent growth curve modelling of survey data. Methodological issues are illustrated with empirical evidence from the analysis of longitudinal data on life satisfaction trajectories using data from the British Household Panel Survey, a national representative survey in Great Britain. A multi-process second-order latent growth curve model with conditional linear growth is used to study variation in the two perceived life satisfaction latent factors considered. The benefits of accounting for the complex survey design are considered, including obtaining unbiased both point and standard error estimates, and therefore correctly specified confidence intervals and statistical tests. We conclude that, even for the rather elaborated longitudinal data models that were considered, estimation procedures are affected by variance-inflating impacts of complex sampling. 相似文献
8.
9.
Intersectional Individuality: Georg Simmel's Concept of “The Intersection of Social Circles” and the Emancipation of Women 下载免费PDF全文
Marcel Stoetzler 《Sociological inquiry》2016,86(2):216-240
Georg Simmel's “The intersection of social circles,” a chapter in his 1908 Sociology, contains discussions of class, religion, ethnic, and gender relations that are highly relevant to contemporary sociological concerns. Simmel's argument is based on a notion of historical dynamic that interprets increasingly complex intersectionality as a sign of progressing civilization. The article establishes how Simmel describes “the intersection of social circles” and then looks at Simmel's account through the concept of “intersectionality” as developed in contemporary feminist theory. The article suggests that although some aspects of Simmel's account of women in modernity are incompatible with contemporary feminism, the shared use of the same image, “intersection,” in Simmel and in contemporary feminist theory is the symptom of a shared concern with a particular aspect of the complexity of modern society. In Simmel, the increasing density of the intersections of social circles points to the increasingly complex individuality of modern subjects, whereas the use of the same image in contemporary feminist theory is part of a critique of inequality and oppression in the same modern society whose advent Simmel celebrated. Intersectionality is a characteristic of modern society that first became visible more than a century ago and has meanwhile become ever the more a signature of modernity. 相似文献
10.
Marcel Helbig Kathrin Leuze 《KZfSS K?lner Zeitschrift für Soziologie und Sozialpsychologie》2012,64(1):91-122
In this article, we use the data from the German PISA 2006 national supplementary sample (PISA-E) to examine gender-(a)-typical occupational aspirations of boys and girls at the age of 15. To do so, we study three types of explanatory factors: the influence of parents, individual achievement as well as of school support for scientific activities. We find that parents are important socializing agents, yet, in a gender-specific way. While upper-class girls in particular prefer male-typed occupations due to the modern gender roles of their parents and better information about career prospects, boys are mainly influenced by their fathers?? role models, irrespective of their social class. In addition, girls are more likely to choose female occupations if they have low levels of competences and poor grades. Boys, in contrast, with good grades in math are more likely to choose male occupations, whereas boys with good grades in German are more likely to choose female occupations. These findings suggest that it is primarily because of girls that female occupations are being devalued, not because of boys. School activities to support scientific activities, however, do not affect gender-(a)-typical occupational aspirations, neither of girls nor of boys. 相似文献