Purpose – The purpose of this study is to draw on the updated information system success model, perceived value and new product novelty to identify the factors that may influence user satisfaction and loyalty with paid knowledge platforms. Design/methodology/approach – The authors used the survey method to collect 540 valid sample data. The structural equation modelling (SEM) technique was employed to test the proposed research model and hypotheses. Findings – The findings suggested that system, information and service quality significantly affected the perceived utilitarian value, while service quality and new product novelty had significant impact on perceived hedonic value. Besides, both the perceived utilitarian value and the perceived hedonic value had a significant effect on user satisfaction and further significantly impacted user loyalty. The authors also found user differences, including gender, education level and use frequency, which had a significant influence on perceived utilitarian value, perceived hedonic value and user loyalty. Research limitations/implications – The results can help researchers and practitioners better understanding the factors that influence user satisfaction and loyalty with paid knowledge platforms. Originality/value – The authors applied the theories of perceived value, new product novelty and user loyalty to the domain of paid knowledge platforms and explored the factors influencing the user satisfaction and loyalty to paid knowledge platforms.

近年来数字鸿沟研究受到了各国学者的广泛关注。系统梳理国外数字鸿沟研究的文献,旨在为我国学者了解国外数字鸿沟研究的现状,对该领域开展进一步的系统研究提供借鉴和参考。首先,采用综合、归纳、比较等方法,对数字鸿沟的概念与类型,以及数字鸿沟研究的问题论域,包括影响因素、测量指标、评价模型、弥合举措和发展趋势等方面,进行了较为系统的综述。然后,对国外数字鸿沟研究的现状进行了述评:已经形成了较为系统的理论体系;研究方法以量化研究为主,质化研究有待加强;第三道数字鸿沟的相关研究尚处于初级阶段;数字鸿沟的分类问题有待进一步研究;数字鸿沟的弥合举措问题也有待进一步研究以及数字鸿沟研究的发展趋势为数字包容等。

(1)构建了数字图书馆用户体验的理论模型。在数字图书馆用户体验实证研究结果的基础上，回顾用户体验、用户交互、用户满意、信息觅食以及信息构建等理论，借鉴国内外现有研究成果，构建了数字图书馆用户体验的理论模型。(2)设计了数字图书馆用户体验的测量量表。以ISSM、TAM、亲和力以及用户满意等理论为基础，设计了数字图书馆用户体验的测量量表并检验其效度。

Users' loyalty to digital libraries is declining. There are quite a few studies on user satisfaction in digital libraries. However, the affinity theory and the loyalty theory are rarely applied to study digital library use.The purpose of this study is to integrate the information system success theory, Technology Acceptance Model, and affinity theory to identify the factors that may affect user satisfaction and user loyalty to digital libraries. A total of 426 valid survey questionnaires were collected. The structural equation modeling was employed to test the proposed research model and hypotheses. The results indicated that, instead of information quality, system and service quality significantly affected perceived ease of use, perceived usefulness and digital libraries (DLs)’ affinity. Both perceived ease of use and DLs' affinity impacted on perceived usefulness. Moreover, perceived usefulness and DLs' affinity had significant effects on user satisfaction, thereby affecting user loyalty. We also found that user differences, including age, gender, and educational level, significantly affected DLs’ affinity, which further influenced user satisfaction and loyalty. Implications for librarians and service providers to improve the quality of digital libraries are provided.