Social Network Incentives

https://gyazo.com/5c164731efd56100550e852918b3670a

For example, a case where you want to promote fitness

Social Network Incentive: "Encourage others to exercise and reward those who do" is a social network incentive.

experiment

market-based incentive

Reward the individual for increased physical activity

Social Network Incentives

Assign 2 "buddies" to each person x

x's buddy receives cash for each increase in x's momentum

result

Social network incentives were four times more effective than market-based incentives for individuals

Four times the amount of behavior change per dollar.

Aharony, N., Pan, W., Ip, C., Khayal, I. and Pentland, A., 2011. Social fMRI: Investigating and shaping social mechanisms in the real world. Pervasive and Mobile Computing, 7(6), pp.643-659.

Adjodah, D.D., 2013. Understanding social influence using network analysis and machine learning (Doctoral dissertation, Massachusetts Institute of Technology).

Friends and Family Study

FunFit

Part of a study conducted by the MIT Media Lab in 2010

GPS, accelerometers, and Facebook feeds were collected from 130 subjects for over a year.

During two months of that period, there was an intervention on physical activity

Measuring the amount of motion with an accelerometer see Adjodah 2.3 Measuring behavior change

Cost per unit of momentum improvement / Average improvement rate

control When paying compensation to individuals $83 / 3.2

If checked by peer-see buddy $39.5 / 5.5

Peer-reward If rewarded for a buddy $12 / 10.4

Peer-see is a condition that rewards the individual as well as control, and also allows two buddies to see the amount of exercise.

consideration

Buddies become a team with the common goal of "increasing x momentum".

Engagement (collaborative behavior) on how to increase x momentum is encouraged.

Momentum was maintained after incentives were removed.

Coefficient of determination of correlation between behavior change and number of calls is 0.8, 0.9 for all communication channels

In other words, rewarding buddies promotes communication.

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