Many existing studies have considered the factors influencing review helpfulness,mainly focusing on reviewer impact,review informativeness,and managerial response,based on signaling theory.However,previous studies hav...Many existing studies have considered the factors influencing review helpfulness,mainly focusing on reviewer impact,review informativeness,and managerial response,based on signaling theory.However,previous studies have simply regarded these factors as independent signals,thus ignoring their in-depth transmission and reception processes.The conclusions about the impact of reviewers on review helpfulness are also inconsistent due to the inaccurate measure-ment of variables.To fill the above gaps,we followed the signaling timeline theoretical framework used in signaling the-ory and employed a bootstrapping analysis to examine how reviewer impact,review informativeness,and hotel manageri-al responses interact to influence review helpfulness.In this study,we used a unique dataset that included official labels from one leading online travel agency.The results show that reviewer impact may affect review helpfulness sequentially through review informativeness and hotel managerial response.Furthermore,by using official labels,both reviewer expert-ise and reviewer experience significantly affect review helpfulness.Finally,we discussed the theoretical and practical im-plications of these findings.展开更多
目的:探讨建成环境对中国儿童青少年体力活动与肥胖的影响。方法:采用系统文献综述法,在Cochrane Library、PubMed、Web of Science、Active Living Research以及中国知网等电子文献数据库中进行文献检索,检索期限从各数据库收录起始日...目的:探讨建成环境对中国儿童青少年体力活动与肥胖的影响。方法:采用系统文献综述法,在Cochrane Library、PubMed、Web of Science、Active Living Research以及中国知网等电子文献数据库中进行文献检索,检索期限从各数据库收录起始日期至2018年4月,详尽收集建成环境和体力活动与肥胖相关的文献资料,采用美国健康研究院的观察性队列研究和横断面研究质量评价工具对纳入文献质量进行评价。结果:对于中国儿童青少年来说,土地混合利用、街道连通性、交通设施便利性、目的地(如体育设施、生活设施和公园等)可及性、体育设施和资源(如附近体育设施、俱乐部和组织、康乐设施、人行道等)可用性能有效促进体力活动;相反,住所附近没有人行道、住所周围马路步行不便利、到附近公园距离远或居住密度高会降低体力活动,增加久坐行为,提高超重或肥胖风险。结论:建成环境对中国儿童青少年体力活动和肥胖有显著影响。在健康中国和全民健身的战略背景下,建议结合国家政策层面的干预措施和体育绿色发展的基本理念,有效改善和建造行人友好型环境,促进中国儿童青少年绿色出行,提高体力活动,降低肥胖风险。展开更多
基金supported by the Philosophy and Social Science Planning Program of Shanghai(2021BGL018).
文摘Many existing studies have considered the factors influencing review helpfulness,mainly focusing on reviewer impact,review informativeness,and managerial response,based on signaling theory.However,previous studies have simply regarded these factors as independent signals,thus ignoring their in-depth transmission and reception processes.The conclusions about the impact of reviewers on review helpfulness are also inconsistent due to the inaccurate measure-ment of variables.To fill the above gaps,we followed the signaling timeline theoretical framework used in signaling the-ory and employed a bootstrapping analysis to examine how reviewer impact,review informativeness,and hotel manageri-al responses interact to influence review helpfulness.In this study,we used a unique dataset that included official labels from one leading online travel agency.The results show that reviewer impact may affect review helpfulness sequentially through review informativeness and hotel managerial response.Furthermore,by using official labels,both reviewer expert-ise and reviewer experience significantly affect review helpfulness.Finally,we discussed the theoretical and practical im-plications of these findings.
文摘目的:探讨建成环境对中国儿童青少年体力活动与肥胖的影响。方法:采用系统文献综述法,在Cochrane Library、PubMed、Web of Science、Active Living Research以及中国知网等电子文献数据库中进行文献检索,检索期限从各数据库收录起始日期至2018年4月,详尽收集建成环境和体力活动与肥胖相关的文献资料,采用美国健康研究院的观察性队列研究和横断面研究质量评价工具对纳入文献质量进行评价。结果:对于中国儿童青少年来说,土地混合利用、街道连通性、交通设施便利性、目的地(如体育设施、生活设施和公园等)可及性、体育设施和资源(如附近体育设施、俱乐部和组织、康乐设施、人行道等)可用性能有效促进体力活动;相反,住所附近没有人行道、住所周围马路步行不便利、到附近公园距离远或居住密度高会降低体力活动,增加久坐行为,提高超重或肥胖风险。结论:建成环境对中国儿童青少年体力活动和肥胖有显著影响。在健康中国和全民健身的战略背景下,建议结合国家政策层面的干预措施和体育绿色发展的基本理念,有效改善和建造行人友好型环境,促进中国儿童青少年绿色出行,提高体力活动,降低肥胖风险。
