欧洲化和一体化:欧盟研究中的概念

欧洲化和一体化是欧盟研究的两个核心概念。近年来越来越多地使用"欧洲化"概念不仅反映了欧洲一体化的发展历程,也反映了这种发展对成员国巨大的反作用。欧洲化既不是新瓶装旧酒,也不是根本的概念创新,而是一个很抽象的概念,它的过程和有关特征还不能作为可操作的概念来研究,大多数研究只是把国家层级的变化作为欧洲一体化的结果。欧洲化概念的使用者在诸多方面对新功能主义进行了修正,更加强调政治运行的复杂性,更加关注欧洲和国家发展之间转化机制的系统研究,强调在变化的机会结构框架中的利益诉求以及传播、学习和社会化进程。     

Approximate and exact optimal designs for paired comparisons of partial profiles when there are two groups of factors

For paired comparison experiments involving pairs of multifactor options differing in a specified number of factors the problem of finding optimal designs is considered, when only main effects are to be estimated. It is presumed that the set of factors can be partitioned into two groups such that the number of levels is constant within each group. The optimal designs for this frequently encountered case are also optimal for the corresponding choice experiments under the hypothesis that the parameters in the multinomial logit model are equal to zero.     

Exploring user experience and technology acceptance for a fall prevention system: results from a randomized clinical trial and a living lab

Background

Falls are common in older adults and can result in serious injuries. Due to demographic changes, falls and related healthcare costs are likely to increase over the next years. Participation and motivation of older adults in fall prevention measures remain a challenge. The iStoppFalls project developed an information and communication technology (ICT)-based system for older adults to use at home in order to reduce common fall risk factors such as impaired balance and muscle weakness. The system aims at increasing older adults’ motivation to participate in ICT-based fall prevention measures. This article reports on usability, user-experience and user-acceptance aspects affecting the use of the iStoppFalls system by older adults.

Methods

In the course of a 16-week international multicenter study, 153 community-dwelling older adults aged 65+ participated in the iStoppFalls randomized controlled trial, of which half used the system in their home to exercise and assess their risk of falling. During the study, 60 participants completed questionnaires regarding the usability, user experience and user acceptance of the iStoppFalls system. Usability was measured with the System Usability Scale (SUS). For user experience the Physical Activity Enjoyment Scale (PACES) was applied. User acceptance was assessed with the Dynamic Acceptance Model for the Re-evaluation of Technologies (DART). To collect more detailed data on usability, user experience and user acceptance, additional qualitative interviews and observations were conducted with participants.

Results

Participants evaluated the usability of the system with an overall score of 62 (Standard Deviation, SD 15.58) out of 100, which suggests good usability. Most users enjoyed the iStoppFalls games and assessments, as shown by the overall PACES score of 31 (SD 8.03). With a score of 0.87 (SD 0.26), user acceptance results showed that participants accepted the iStoppFalls system for use in their own home. Interview data suggested that certain factors such as motivation, complexity or graphical design were different for gender and age.

Conclusions

The results suggest that the iStoppFalls system has good usability, user experience and user acceptance. It will be important to take these along with factors such as motivation, gender and age into consideration when designing and further developing ICT-based fall prevention systems.

     

Rebound effects of progress in information technology

Information technology (IT) is continuously making astounding progress in technical efficiency. The time, space, material and energy needed to provide a unit of IT service have decreased by three orders of magnitude since the first personal computer (PC) was sold. However, it seems difficult for society to translate IT’s efficiency progress into progress in terms of individual, organizational or socio-economic goals. In particular it seems to be difficult for individuals to work more efficiently, for organizations to be more productive and for the socio-economic system to be more sustainable by using increasingly efficient IT. This article provides empirical evidence and potential explanations for this problem. Many counterproductive effects of IT can be explained economically by rebound effects. Beyond that, we conclude that the technological determinism adopted by decision-makers is the main obstacle in translating IT’s progress into non-technical goals.

Management-Risiken

When high ranking executive managers derail, this is mostly the result of a lengthier previous process. However, for the environment it is a surprising occurrence when successful managers give in to their duties and responsibilities suddenly. This phenomenon is called “derailment”. Often such derailment is preceded by a long-lasting process of excessive demands. In the article the different layers where such over-challenge occurs are analyzed and forms of appearance described. The second part of the article dwells on how businesses can prevent from risks in the management team.     

Political regimes and the family: how sex-role attitudes continue to differ in reunified Germany

We exploit the German separation and later reunification to investigate whether political regimes can shape attitudes about appropriate roles for women in the family and the labor market. During the divided years, East German institutions encouraged female employment, while the West German system deterred women, in particular mothers, from full-time employment. Our results show that East Germans are significantly more likely to hold egalitarian sex-role attitudes than West Germans. Despite a scenario of partial policy convergence after reunification, we find no evidence for a convergence process in gender attitudes. Indeed, if anything, the gap in attitudes rather increased.     

Should “open innovation” change innovation policy thinking in catching-up economies? Considerations for policy analyses

This paper provides a review of the current state of academic and policy-level debates on “open innovation” by elaborating on the relevance of the concept of open innovation for innovation policy-making in catching-up economies. The paper shows that paradoxes and contradictions exist between the “mainstream” innovation discourse and the development challenges of the catching-up countries that have lead to “de-contextualization” of the innovation policy discourse. The paper argues that applying the concept of open innovation in its ideal-type form to the catching-up context is likely to reinforce these de-contextualization tendencies. This problem can be remedied by more conscious attention to the basic contradictions and paradoxes, which requires a more comprehensive and systemic analytical focus on innovation and technological development at the levels of firm, industry and policy.     

Challenges and boundaries in implementing social return on investment: An inquiry into its situational appropriateness

Nonprofit organizations (NPOs) and social enterprises are increasingly under pressure to justify their use of resources and report their impact on society. Frameworks that monetize social value such as social return on investment (SROI) have emerged as a response. The existing literature highlights many benefits and technical challenges of SROI, but largely ignores strategic and organizational learning aspects. This paper explores the use of SROI in an NPO conducting cultural heritage preservation. By analyzing the challenges managers face in agreeing on a reliable (“correct”) computation of SROI and in assessing the validity and relevance (“appropriateness”) of SROI, we seek to understand the challenges and boundaries of SROI. Challenges with a reliable computation of SROI are identifying stakeholders, the choice of proxies, the time horizons, and deadweight factors. Challenges with an appropriate SROI calculation are comparability, subjectivity, legitimacy, and resource utility. We argue that SROI calculations might not be reliable or appropriate in organizations with fuzzy purposes, broad value creation goals, broad target groups, very individual or subjective proxies, strongly lagged outcomes, complex or unobservable causality, and with lack of legitimacy among stakeholders. Organizations should not trustingly adopt SROI without being aware of these limitations.