I'm Bernadette, one of the researchers on the project. What we aim at with this project is not just getting an idea of actual prices that people demand. The questions also aim to understand what it is that drives those prices, what makes information more or less valuabel? But most of all we aim to generate awareness of the issue and to get the ball rolling. The more participants we get, the stronger our empirical argument. And yes in order to not infringe on privacy we are assessing an abstracted version of what apps often actually assess (e.g. you would tell us that you are out in the street rather than us knowing exactly where). This makes the project ethical. And it is sufficient to tell us what influence location, etc. has on the perceived value of information.
The app really isn't time consuming (the longest is the initial questionnaire and it is not overly long either) and hope that you'll support us with a download.
Any questions or comments, please contact us on privacyvalue.org
We will also be running a workshop presenting some preliminary results in early June. If you would like to participate, let us know via the webpage.