This study examined how social media marketing activities (SMMA) influence consumers’ engagement behaviour in developing countries. Based on the stimulus-organism-response theory, we examined the effect of SMMA on consumers’ engagement intention and further investigated the moderating effect of social media sales intensity. The study employed a time-lagged design with two waves to confirm the hypothesised framework. The study findings showed that SMMA positively influence consumers’ engagement intention and engagement behaviour. In addition, social media sales intensity strengthens the link between engagement intention and engagement behaviour. This study adds to the literature on social media and discusses its practical implications.

PurposeTo date, few empirical studies have explored the boundary conditions under which employees may choose to observe silence at work. Drawing on the conservation of resource (COR) theory, the present study bridges this gap by examining the interaction effect of leader-member exchange (LMX) on the relationship between social undermining and employee silence while considering the mediating role of emotional exhaustion.Design/methodology/approachData were collected from 327 employees working in Pakistan's service sector through the purposive sampling technique and analyzed using PLS path modeling.FindingsThe findings support the authors’ projections such that social undermining, i.e., supervisor undermining, coworker undermining and customer undermining, are positively related to emotional exhaustion. Besides, emotional exhaustion partially mediates the associations between supervisor undermining and employee silence, coworker undermining and employee silence, and customer undermining and employee silence. Further, the results confirm the interaction effect of LMX. The harmful impact of social undermining is exacerbated in high-quality LMX relationships compared to those at low LMX relationships.Originality/valueThis study is one of the few efforts to understand the conditions under which employee silence is more likely or less likely to occur. The authors’ findings draw the attention of researchers and practitioners to understand the uniqueness of this linkage such that variations in leaders' behavior are more detrimental for “in-group” members than their counterparts (i.e. “out-group” members).

The economic stability of a country, such as Pakistan is dependent on the construction of mega-projects, such as the China-Pakistan Economic Corridor (CPEC). However, certain external factors and project characteristics may delay the construction of infrastructure projects; scholars have not investigated the development of CPEC from this perspective. In addition, the COVID-19 outbreak has hindered CPEC initiatives. This analysis will examine the effect of external environment factors on CPEC, and benchmark the project’s effects on economic stability through CPEC’s development by incorporating 523 samples obtained from employees of various CPEC projects. Structural equation modeling was used to analyze all hypotheses proposed here on AMOS 21.0 tools. According to the findings of this study, the CPEC external environment and project benchmark characteristics have a negative effect on the construction of CPEC development. Furthermore, the development of CPEC is found to have a significant effect on economic stability. However, fear of COVID-19 has weakened the relationship between CPEC development and economic stability. Finally, we also discuss the implications and limitations of the study.