We investigate the mental health of multicultural families (CFs) in South Korea, identify risk factors, and propose interventions to improve mental health. Adults over 19 years of age were analyzed using the Community Health Survey 2019 in South Korea, consisting of 228,952 individuals including 3,524 from multi-CFs. We employed chi-squared tests and multiple logistic regression to compare mental health between multi- and mono-CFs, exploring the influence of various factors. Multi-CFs had significantly higher levels of stress recognition (P-value = 0.010) and experiences of extreme sadness or despair (P-value = 0.002) than mono-CFs. In multi-CFs, younger group, households with lower income and people with unhealthy behaviors regarding walking or sleeping were at risk of mental health. Socially isolated families, relative to the families participating in active social gatherings, had about a 1.36 times higher risk of stress, 2 times higher experiences of extreme sadness or despair and 5.32 times higher depressive symptoms. Multi-CFs are vulnerable to mental health problems, and even within multi-CFs, groups with relatively low socioeconomic status should be prioritized since problems are more significant among them. Activated social networks can help multi-CFs integrate into society and promote mental health.

Digital media have changed the ways people mobilise and act collectively in times of crisis. During the Russian aggression against Ukraine, they have been at the forefront of war coverage giving users the possibility to share experiences of wartime reality. To critically engage in the mediatisation of the current war in the context of war witnessing, this article aims at studying the war diaries shared on media during the Russo-Ukrainian war. More precisely, this study focuses on the analysis of Facebook and MyWar platform digital war diaries that were triggered by Russia's full-fledged invasion of Ukraine 2022. The article seeks to understand the main tools for experiencing and constructing wartime reality and war trauma. The experimental work presented here provides one of the first investigations into how wartime witnessing of Russian aggression is happening and how it is shared in the contemporary space of digital media and fosters intellectual discussion about the dynamics of digital participation while witnessing and narrating war experiences.

This study examines racial discrimination faced by Black immigrants in the US, focusing on its impacts on well-being, social integration, and intergroup relations. It highlights a gap in understanding African immigrants' discrimination experiences despite documented hate crimes. The research aims to understand how Nigerian immigrants are affected by integration into US society. Using a mixed methodology with surveys and interviews, the study reveals varied correlations between integration factors and discrimination experiences. It provides nuanced insights into how integration, national identity, and social networks influence Nigerian immigrants' relationships and encounters with discrimination in the US, contributing valuable perspectives on integration-discrimination dynamics.

Empirical articles vary considerably in how they measure child and adolescent friendship networks. This meta-analysis examines four methodological moderators of children’s and adolescents’ average outdegree centrality in friendship networks: boundary specification, operational definition of friendship, unlimited vs. fixed choice design, and roster vs. free recall design. Specifically, multi-level random effects models were conducted using 261 average outdegree centrality estimates from 71 English-language peer-reviewed articles and 55 unique datasets. There were no significant differences in average outdegree centrality for child and adolescent friendship networks bounded at the classroom, grade, and school-levels. Using a name generator focused on best/close friends yielded significantly lower average outdegree centrality estimates than using a name generator focused on friends. Fixed choice designs with under 10 nominations were associated with significantly lower estimates of average outdegree centrality while fixed choice designs with 10 or more nominations were associated with significantly higher estimates of average outdegree centrality than unlimited choice designs. Free recall designs were associated with significantly lower estimates of average outdegree centrality than roster designs. Results are discussed within the context of their implications for the future measurement of child and adolescent friendship networks.

To overcome liabilities of foreignness and outsidership during internationalization, board interlock is an effective conduit of foreign knowledge inflows and organizational learning that firms require. We focus on the time dimension of such influence and hypothesize that the tenure of board interlocks with firms with experience in outward foreign direct investment (OFDI) in a country promotes the OFDI decision of the focal firm to that particular country. However, such an effect diminishes as the tenure of interlock ties increases. Moreover, as an alternative knowledge source, OFDI knowledge from the focal firm's neighboring region may weaken the baseline effect. Based on longitudinal data of listed firms in China, our empirical results support the hypotheses. This study enriches the literature on social network learning by identifying its temporal nature and the substitution between different knowledge sources. It also demonstrates the importance of rotating a firm's board members, so that knowledge acquisition and learning remain fresh.

Chinese domestic rural–urban migrant workers have played a substantial role in economic development since the late 1970s. This article makes an attempt to establish a two-period hiring model interpreting the impact mechanism of social networks on migrant workers’ wages. The findings indicate that the extension of social networks of both firms and workers facilitates a decrease in the information gap between them and improves extra common benefits to both.

For the measles-mumps-rubella (MMR) vaccine, the World Health Organization-recommended coverage for herd protection is 95% for measles and 80% for rubella and mumps. However, a national vaccine coverage does not reflect social clustering of unvaccinated children, e.g. in schools of Orthodox Protestant or Anthroposophic identity in The Netherlands. To fully characterise this clustering, we estimated one-dose MMR vaccination coverages at all schools in the Netherlands. By combining postcode catchment areas of schools and school feeder data, each child in the Netherlands was characterised by residential postcode, primary and secondary school (referred to as school career). Postcode-level vaccination data were used to estimate vaccination coverages per school career. These were translated to coverages per school, stratified by school identity. Most schools had vaccine coverages over 99%, but major exceptions were Orthodox Protestant schools (63% in primary and 58% in secondary schools) and Anthroposophic schools (67% and 78%). School-level vaccine coverage estimates reveal strong clustering of unvaccinated children. The school feeder data reveal strongly connected Orthodox Protestant and Anthroposophic communities, but separated from one another. This suggests that even at a national one-dose MMR coverage of 97.5%, thousands of children per cohort are not protected by herd immunity.

Technology that develops rapidly has profoundly affected the business field and reshaped some behaviours of corporations, and the discussion on startup risk-taking behaviour in the new era is still insufficient. Based on social network theory and social capital theory, this article studies how social networks and entrepreneurial ecosystems support startup risk-taking behaviour. This article cuts into this issue through the perspective of coopetition. Based on 737 responses, this article employs regression and fuzzy-set qualitative comparative analysis to explore the relationships between networks, ecosystem coopetition, and risk-taking behaviour. Results indicate that networks and coopetition may stimulate startup risk-taking behaviour, and coopetition may weaken the impacts of networks. There are replacement effects between different characteristics of networks, and there are several configurations, which may lead to high-level risk-taking. This article may help us understand startup risk-taking behaviour in the digital era and the positive impacts of ecosystems.

The great urbanist Jane Jacobs details how urban planning impacts the social interactions and social networks responsible for the economic death or life of a city. How might urban planning impinge on the moral values that underlie that development? I draw on Jacobs’s work on the moral foundations of commercial society to identify two “urban values” (tolerance and innovation). I then examine how these values support the social networks and processes that facilitate urban-based innovation and how urban planning can strengthen or undermine those values. I use the examples of urban planning in the 15th Ward of Syracuse, New York and of city building in the private development of Cayalá in Guatemala City to illustrate these points.