In China, where the corporate social responsibility (CSR) process is relatively underdeveloped, the government has promulgated a series of laws and regulations on CSR disclosure in recent years to promote the sustainable transformation of the economy. Using data from A-share listed Chinese firms from 2009 to 2021, this study empirically examines the relationship between CSR disclosure quality and firm investment efficiency in China. The results indicate that (1) improvements in CSR disclosure quality significantly mitigate firms’ underinvestment and overinvestment, thereby enhancing investment efficiency. (2) Further analysis shows that high-quality CSR information also promotes investment efficiency by reducing agency costs and financing constraints and improving media evaluations of firms. (3) A heterogeneity analysis suggests that the positive effect of CSR disclosure on investment efficiency is stronger for firms with lower equity incentives, more severe financing constraints, and higher media attention. Our study extends the understanding of the mechanisms through which CSR disclosure affects firms’ investment efficiency, potentially providing insights for research in related fields and guiding future CSR disclosure practices in other developing countries.

Background: With the acceleration of global aging, loneliness among older adults has become a prominent issue and a critical public health concern. Existing research has primarily focused on the cross-sectional relationship between social support and loneliness, but longitudinal dynamics and bidirectional mechanisms remain underexplored. This study aims to explore the developmental trajectories and interaction between loneliness and social support among Chinese older residents in the community.Methods: The study was conducted with three waves of data collection (6-month intervals) over 1 years, involving 1,225 Chinese older residents in the community. The Navigating the Social Support Scale and the UCLA Loneliness Scale were used to measure social support and loneliness, respectively. Cross-lagged panel modeling (CLPM) was employed to examine bidirectional predictive relationships, while parallel process latent growth curve modeling (LGCM) was applied to assess associations between initial levels and developmental rates of the two constructs.Results: (1) The loneliness of the older adults gradually increased over time, while the level of social support slowly decreased. (2) Loneliness could negatively predict social support from T1 to T2, and T2 to T3, but only social support at T1 negatively predicted loneliness at T2. (3) The initial level of loneliness could negatively predict the development speed of social support, and social support could also negatively predict the development speed of loneliness.Conclusion: We found that that high loneliness is a risk factor in the development of social support levels, and high social support is also a protective factor in the development of loneliness, which provides empirical evidence for the study of emotional health in the older adults.

Introduction: Social anxiety (SA) is a common and developmentally significant concern during adolescence. Although prior research suggests that physical activity (PA), loneliness, and SA are correlated, less is known about how these associations develop over time. This study examined the within-person longitudinal associations among these variables in a sample of Chinese adolescents. Methods: Data were collected across four waves from 1,440 students (52.3% male; Mage = 13.39 years, SD = 0.62). A Random Intercept Cross-Lagged Panel Model was used to analyze the data. Results: At the within-person level, higher SA predicted subsequent increases in loneliness, while loneliness in turn predicted higher SA, suggesting a reciprocal and reinforcing process. Higher PA was associated with later decreases in both SA and loneliness, whereas SA and loneliness predicted lower subsequent PA. Conclusion: These findings highlight the dynamic links among SA, loneliness, and PA, underscoring the importance of addressing social–emotional difficulties while promoting PA to reduce adolescent loneliness.

This article examines the revival of a short-lived, non-canonised medium to challenge dominant assumptions in media nostalgia research. Focusing on the resurgence of the Casio TR camera on Rednote, it draws on participant observation, analysis of 120 posts, and 11 interviews. The article shows that nostalgia is organised through four platformed scenarios — acquisition, use, loss/deception, and spectatorship–demonstrating that nostalgia is socially distributed and not confined to prior ownership. Building on the concept of mnemonic imagination, the study argues that nostalgia extends beyond recollection, linking past, present, and future practices. It further shows that revival is sustained through configuration and re-interpretation: users integrate the device into hybrid media ecologies while symbolically revaluing it through narratives of youth and aspiration. The article argues that platform-mediated nostalgia does not simply preserve obsolete media, but reworks the past into a resource for present use and future-oriented cultural production.