Adolescents’ and Young Adults’ Online Risk Taking: The Role of Gist and Verbatim Representations

Young people are exposed to and engage in online risky activities, such as disclosing personal information and making unknown friends online. Little research has examined the psychological mechanisms underlying young people's online risk taking. Drawing on fuzzy trace theory, we examined developmental differences in adolescents’ and young adults’ online risk taking and assessed whether differential reliance on gist representations (based on vague, intuitive knowledge) or verbatim representations (based on specific, factual knowledge) could explain online risk taking. One hundred and twenty two adolescents (ages 13–17) and 172 young adults (ages 18–24) were asked about their past online risk‐taking behavior, intentions to engage in future risky online behavior, and gist and verbatim representations. Adolescents had significantly higher intentions to take online risks than young adults. Past risky online behaviors were positively associated with future intentions to take online risks for adolescents and negatively for young adults. Gist representations about risk negatively correlated with intentions to take risks online in both age groups, while verbatim representations positively correlated with online risk intentions, particularly among adolescents. Our results provide novel insights about the underlying mechanisms involved in adolescent and young adults’ online risk taking, suggesting the need to tailor the representation of online risk information to different age groups.     

考虑消费者网购体验滞后的产品定价研究

随着电子商务技术的发展，网络购物越来越便利。与此同时，网络购物带来的产品体验滞后也导致了消费者对产品的认知不确定性。而这种不确定性正在成为消费者策略性退货行为的主要原因，如消费者同时购买多件具有横向差异的产品，在收到货物后经亲身体验后保留一件而将其他产品退货。本文通过构建Hotelling模型，探讨了企业在考虑此种影响情况下的最优定价策略，分析得出：当消费者的退货成本增加时，企业最优定价也随之增加；消费者对产品的先验效用差异化越小，企业的最优定价也越低。同时发现，若某种产品无消费者单独购买，企业的最优定价会随消费者偏好的增加而增加；而当两种产品均有消费者单独购买且消费者退货成本较大时，企业的最优定价不但不会随消费者偏好的增加而提高，反而会随消费者偏好增加而减少。此外，本文给出了消费者策略性退货行为存在的临界条件，当消费者的退货成本高于这一临界条件时消费者的策略退货行为将消失。     

Pivot to Telehealth: Narrative Reflections on Circle of Security Parenting Groups during COVID‐19

In response to COVID‐19 hygiene and physical distancing restrictions, our service rapidly shifted to delivering Circle of Security‐Parenting? (COS‐P) groups via telehealth. In this article we report the perspectives and experiences of the group facilitator and the parents who received the intervention during the COVID‐19 pandemic. We use semi‐structured, qualitative interviews to explore the advantages, challenges, and positive impacts of the online parenting group from the perspectives of the group leader and the five group participants. Participants’ narrative reflections show that they were satisfied with the convenient and engaging online delivery of the program and would recommend it to other parents. Parents reported significant improvements in their parenting and greater awareness of their strengths and struggles. The online delivery of COS‐P resulted in more efficient service delivery, greater attendance rates, and adherence to the model. The stressors on the experienced facilitator, due to the abrupt transition and multiple technical and communication challenges, may have been mitigated by supervisor and collegial support, as well as careful preparation for herself and the participants. Future research should investigate the effectiveness of online versus face‐to‐face delivery of the intervention, including what works for whom.     

校园贷刑事规制问题研究

互联网金融发展使得新型金融产品应运而生。校园贷具有数额小、效率高、门槛低等优势，吸引了有超前消费需求的在校大学生。由于平台监管缺失、大学生消费非理性等因素，校园贷滋生出了高利贷、骗贷、裸贷等乱象，部分行为还构成了违法犯罪。与其他网络贷款方式相比，校园贷具有借款对象单一性、贷款方式隐蔽性、抵押方式非具象性、催款手段违法性、受害学生犯罪转化性等特征，导致校园贷走入迷途。为了有效规范和严格治理校园贷，可以通过建立犯罪防控体系、促进联合监管、强化学生法治意识等路径，将校园贷引入良性发展轨道，最终实现良好的法律效果和社会效果。     

混合式教学情境下生成性资源的进化与促进策略

随着教育信息化的发展，网络教学与传统课堂教学优势互补的混合式教学模式被广泛应用，混合式教学将成为未来教学的主要方式。由于混合式教学情境既不同于传统课堂教学，又与在线教学有所区别，因此生成性资源在混合式教学情境中的进化方式也呈现出新的特点。通过分析、对比传统课堂教学情境与在线教学情境生成性资源的特点，归纳总结出混合式教学情境下生成性资源的特征，并根据混合式教学活动的实施过程，构建出生成性资源的进化模型，进而提出生成性资源进化的促进策略。     

网络视频实时在线评论用户认可度的影响因素

目前，网络视频实时在线评论激增带来的信息爆炸，使实时在线评论信息管理成为重要议题。以往对实时在线评论的研究多集中于个人行为结果方面，而缺乏对实时在线评论信息管理问题的关注；同时，现有视频网站对实时在线评论信息的管理也存在诸多局限。以爱奇艺视频网站热度榜中的电影为样本，基于信息质量维度框架并采用Tobit模型对实时在线评论用户认可度的影响因素进行研究，结果发现：实时在线评论的新颖性、相似性、情感倾向性和信息丰富性，均对实时在线评论的用户认可度存在显著影响，其中新颖性和相似性影响作用最大。视频网站可以据此进一步强化实时在线评论管理，改善用户的体验，保持用户的粘性。     

桶装水灌装机优化设计

针对现有桶装水灌装生产线中灌装机产能较低、产品适应能力差的缺点,提出了能够适用于19升、17升、11升等多种桶型的高速柔性化灌装机的设计方案。灌装机的灌装头采用气动比例调节阀搭配传感器进行闭环控制,使得灌装液位精确,减少液体飞溅;进瓶装置采用星轮拨爪和由伺服电机驱动的链条传动装置联动的方式,实现水桶的精准拉距,实现多种瓶型快速切换的功能;瓶盖输送机构,结合盖子杀菌柜,实现在线杀菌功能,安全可靠。应用结果表明文章的设计能改善原有桶装水灌装机柔性差、速度慢、可靠性低的现状。优化设计的桶装水灌装机提高了生产效率,降低成本。     

第三方电子交易平台的双边市场特征——基于在线个人借贷市场的实证分析

以Prosper在线个人借贷平台为研究对象,实证考察了第三方电子交易市场中用户的交叉网络外部性、自网络外部性和平台定价策略对双边用户效用和平台利润的影响.结果表明:受市场供小于求、平台运营模式和借贷双方交易行为的影响,新借入者规模对借出者收入、前期借出者总规模对借入者需求均产生了显著的正交叉网络外部性;借入者之间由于竞争存在负自网络外部性,而借出者之间由于协同关系存在正自网络外部性;借贷双方对平台交易费具有显著的负价格弹性,平台利润与借贷双方的交易费分别呈现二次线性关系;在市场供小于求的情况下,平台利润主要受到借出者规模及其费率的影响.