The Role of Reciprocity and Directionality of Friendship Ties in Promoting Behavioral Change

TL;DR

This paper investigates how the reciprocity and directionality of friendship ties influence behavioral change, showing that reciprocal ties lead to more effective peer pressure and early-stage diffusion of behaviors.

Contribution

It reveals the significant impact of reciprocal friendship ties on behavioral influence and diffusion, highlighting the importance of tie directionality in social influence processes.

Findings

Reciprocal friendships are more intimate than unilateral ones.

Reciprocal ties induce greater behavioral change.

Unilateral ties facilitate broader early-stage diffusion.

Abstract

Friendship is a fundamental characteristic of human beings and usually assumed to be reciprocal in nature. Despite this common expectation, in reality, not all friendships by default are reciprocal nor created equal. Here, we show that reciprocated friendships are more intimate and they are substantially different from those that are not. We examine the role of reciprocal ties in inducing more effective peer pressure in a cooperative arrangements setting and find that the directionality of friendship ties can significantly limit the ability to persuade others to act. Specifically, we observe a higher behavioral change and more effective peer-influence when subjects shared reciprocal ties with their peers compared to sharing unilateral ones. Moreover, through spreading process simulation, we find that although unilateral ties diffuse behaviors across communities, reciprocal ties play more important role at the early stages of the diffusion process.