“…Extant research on influencer advertising has paid due attention to the role of sponsorship disclosure (e.g., Evans et al 2017), the impact of AI influencers (Thomas and Fowler 2021), the appeal of influencers among children (Boerman and van Reijmersdal 2020), influencer-follower relationship (Lou 2021), and the effect of consumers' characteristics (e.g., social comparison tendency, compulsive buying tendency, and materialistic envy) (Jin and Ryu 2020). Recent review articles have also summarized the current themes in influencer advertising and bibliometric analysis for practical implications (e.g., Hudders, De Jans, and De Veirman 2021;Ye et al 2021). Yet, there are still untapped or understudied issues in influencer advertising pertaining to the broad context of interactive advertising, for instance, analysis from the perspectives of influencers and/or advertising agencies, the impact of influencers in promoting prosocial behavior (e.g., mask wearing during the pandemic, getting vaccines), the effect of virtual influencers, pet influencers, children influencers, and so on.…”