Participants first read and answer the information sheet. Then, they will be told: Many companies are beginning to use referral bonuses to help spread awareness and usage of their products. One prominent example is Uber. Existing users have a personal code that they can share with new users. If the new user enters the code when they sign up, the person giving their referral code will receive a free ride (also usually a $15 credit). We are interested in learning about how people think about referral bonuses. Participants are then randomly assigned to two groups: sender or receiver. In the sender condition, participants are told: Imagine that a tech company has developed a new email client, Z-Mail. The company plans to grow initially by having its early adopters send invitations to new users. Imagine that you are an early adopter and have been given a number of invitations to send to your friends. In the receiver condition, participants are told: Imagine that a tech company has developed a new email client, Z-Mail. The company plans to grow initially by having its early adopters send invitations to new users. Imagine that your friend is an early adopter and has been given a number of invitations to send to his friends. All participants are then asked in random order: Suppose that the company pays [you/your friend] [nothing/10¢ (ten cents)] for each invitation you send. How acceptable do you think others will view [your actions to be/your friend's actions are] if [you/he] send(s) invitations to all of [your/(his)] friends? [answered on a 1-7 numbered Likert scale with anchors of 1 = not at all acceptable, and 7 = very acceptable]. and Suppose that the company pays [you/your friend] [nothing/10¢ (ten cents)] for each invitation you send. How good would the quality of the product need to be for [you/your friend] to send an invitation? [answered on a 1-7 numbered Likert scale with anchors of 1 = extremely low quality, and 7 = extremely high quality]. Furthermore, participants in the sender condition will be asked at the bottom of the same page: Suppose that the company pays you [nothing/10¢ (ten cents)] for each invitation you send. How acceptable do you think your actions would be if you send an invitation to all of your friends? [answered on a 1-7 numbered Likert scale with anchors of 1 = not at all acceptable, and 7 = very acceptable]. Afterwards, participants will be given a basic attention check, consisting of: In this study, you read about referral bonuses for a new email client. Some people read about a scenario in which the reader (i.e., you) was the sender of referral invitations, while other people read about a scenario in which their friend was the sender of referral invitations. Which scenario did you read about?[I was the sender of referral invitations/My friend was the sender of referral invitations]. Participants who fail this attention check will be excluded form the study.