Impact of Follower Count and “Common Friends” on the Advertising Effectiveness of PR Posts:

The aim of this study is to examine the effects of influencer follower count and the presence of “common friends” on advertising effectiveness in PR posts. Previous research has shown that influencer marketing generates a greater advertising effect compared to celebrity endorsements, with follower c...

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Main Authors: Yuki Nasu, Miho Kobayashi, Ayane Sugiyama, Mana Tachibana
Format: Article
Language:Japanese
Published: Japan Marketing Academy 2025-07-01
Series:Maketingu rebyu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/marketingreview/6/2/6_2025.011/_html/-char/en
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author Yuki Nasu
Miho Kobayashi
Ayane Sugiyama
Mana Tachibana
author_facet Yuki Nasu
Miho Kobayashi
Ayane Sugiyama
Mana Tachibana
author_sort Yuki Nasu
collection DOAJ
description The aim of this study is to examine the effects of influencer follower count and the presence of “common friends” on advertising effectiveness in PR posts. Previous research has shown that influencer marketing generates a greater advertising effect compared to celebrity endorsements, with follower count being a key factor. While prior studies have focused on quantitative aspects such as follower count, qualitative factors such as follower relationships have received less attention. This study examines the impact of Instagram’s “common friends” feature on advertising attitude and purchase intention. In Experiment 1, we found that PR posts with more followers of the influencer had significantly higher advertising attitudes and purchase intentions than PR posts with fewer followers. In Experiment 2, common friends were displayed, unlike in Experiment 1, and then PR posts by influencers with a small number of followers were found to have significantly higher advertising attitudes and purchase intentions than PR posts by influencers with a large number of followers.
format Article
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institution Kabale University
issn 2435-0443
language Japanese
publishDate 2025-07-01
publisher Japan Marketing Academy
record_format Article
series Maketingu rebyu
spelling doaj-art-03cfacaba2284ad4afa11845d89def1e2025-08-20T03:37:31ZjpnJapan Marketing AcademyMaketingu rebyu2435-04432025-07-0162616710.7222/marketingreview.2025.011marketingreviewImpact of Follower Count and “Common Friends” on the Advertising Effectiveness of PR Posts:Yuki Nasu0Miho Kobayashi1Ayane Sugiyama2Mana Tachibana3Undergraduate Student, Faculty of Business Administration, Hosei University, JapanUndergraduate Student, Faculty of Business Administration, Hosei University, JapanUndergraduate Student, Faculty of Business Administration, Hosei University, JapanUndergraduate Student, Faculty of Business Administration, Hosei University, JapanThe aim of this study is to examine the effects of influencer follower count and the presence of “common friends” on advertising effectiveness in PR posts. Previous research has shown that influencer marketing generates a greater advertising effect compared to celebrity endorsements, with follower count being a key factor. While prior studies have focused on quantitative aspects such as follower count, qualitative factors such as follower relationships have received less attention. This study examines the impact of Instagram’s “common friends” feature on advertising attitude and purchase intention. In Experiment 1, we found that PR posts with more followers of the influencer had significantly higher advertising attitudes and purchase intentions than PR posts with fewer followers. In Experiment 2, common friends were displayed, unlike in Experiment 1, and then PR posts by influencers with a small number of followers were found to have significantly higher advertising attitudes and purchase intentions than PR posts by influencers with a large number of followers.https://www.jstage.jst.go.jp/article/marketingreview/6/2/6_2025.011/_html/-char/eninfluencer marketingadvertising attitudepurchase intentionsocial networking services
spellingShingle Yuki Nasu
Miho Kobayashi
Ayane Sugiyama
Mana Tachibana
Impact of Follower Count and “Common Friends” on the Advertising Effectiveness of PR Posts:
Maketingu rebyu
influencer marketing
advertising attitude
purchase intention
social networking services
title Impact of Follower Count and “Common Friends” on the Advertising Effectiveness of PR Posts:
title_full Impact of Follower Count and “Common Friends” on the Advertising Effectiveness of PR Posts:
title_fullStr Impact of Follower Count and “Common Friends” on the Advertising Effectiveness of PR Posts:
title_full_unstemmed Impact of Follower Count and “Common Friends” on the Advertising Effectiveness of PR Posts:
title_short Impact of Follower Count and “Common Friends” on the Advertising Effectiveness of PR Posts:
title_sort impact of follower count and common friends on the advertising effectiveness of pr posts
topic influencer marketing
advertising attitude
purchase intention
social networking services
url https://www.jstage.jst.go.jp/article/marketingreview/6/2/6_2025.011/_html/-char/en
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AT ayanesugiyama impactoffollowercountandcommonfriendsontheadvertisingeffectivenessofprposts
AT manatachibana impactoffollowercountandcommonfriendsontheadvertisingeffectivenessofprposts