Welcome to the study conducted by Arvind Rangaswamy, Min Ding and Huanhuan Shi at the Smeal College of Business at Penn State University. Please read the following information carefully before you start.

What is the study about?

This study will take 30-45 minutes to complete. You will answer questions about your product preferences,daily consumption habits and interpersonal relationships. The purpose of this research is to have a better understanding of consumer preferences and interpersonal networks.

Who is eligible?

  • You are a twin and 18 years or older
  • Both you and your twin sibling are able to participate in the study.


  • You will receive a $10 gift card

  • You will enter into a lucky draw to win a New iPad (worth $500)

No pre-study communication

Please do not communicate the details of this study with your twin before he/she finishes it. Such communications before the study will compromise the research results.

Consent Form

You may download a copy of the research consent form by clicking on Download Consent Form. If you start the study, we will assume that you agree with the information in the consent form.

Questions and Concerns

If you have any questions or concerns, please contact :
Huanhuan Shi
Telephone: 1-814-865-4091
Fax: 1-814 865-3015

End of 1st round of Study

We've ended the first round of our study and we may plan to start the second round soon. If you are interested in participating, please click on the button below to provide your name and email address. We will contact you when the next study is available.