Who’s the Winner? A Comparative Study of Like, Comment and Share Functions in Consumers’ Purchase Intention between Facebook and Instagram

In the past few years, there has been a significant focus on investigating the impact of social media engagement. Although previous studies recognize the importance of social media engagement, there is still a lack of in-depth analysis regarding the specific influences of likes, comments, and shares on consumer behaviour, especially concerning how these engagements affect different platforms. This study aims to examine the relationship between social media engagement metrics (likes, comments, and shares) and consumer purchase intention on two prominent platforms, Facebook and Instagram. By adopting a cross-sectional design, this study employed purposive sampling to gather data from Malaysian university students who have engaged in purchasing activities on social media platforms such as Facebook and Instagram. The analysis was conducted using Partial Least Squares Structural Equation Modeling (PLS-SEM) based on 265 completed responses, comprising 131 from Facebook users and 134 from Instagram users. The results reveal a significant positive relationship between likes and shares with consumer purchase intention on both Facebook and Instagram. However, comments were not found to be associated with consumer purchase intention on either platform. Furthermore, the study conducted a comparative analysis between Facebook and Instagram and found no significant differences in the relationships between engagement metrics and purchase intention. These findings have practical implications for marketers, emphasizing the importance of fostering engagement through likes and shares to drive consumer purchasing behaviour on social media platforms.