Solutions to the standing ovation problem (1995-97). Solutions to the is that seat taken problem (1998). Solutions to the you ought to be in pictures problem (1999). Solutions to the cocktail party problem (2000).

Consider the following situation:

A group of, say, 20 students is given a homework problem once a week for each of fifteen weeks. Once a given homework problem is assigned, it is due the next day. Students are allowed to form and reform into groups as they so desire.

- Explicitly state your model and key assumptions.
- Summarize any results.
- Suggest some potentially interesting future directions and questions for the model.

Potential Solutions (to submit your solution, email them to miller@zia.hss.cmu.edu):

- Chris Brooks and Maggie Penn (2001 GWS) .
- Keyvan Amir-Atefi and Karin Andersson (2001 GWS) .
- Alessandro Acquisti and Ritirupa Samanta (2001 GWS) .
- Ivanna Ferdinandova and Michael Heaney (2001 GWS) .
- Alexander Peterhansl and Jung-Kyoo Choi (2001 GWS) .

John H. Miller , miller@zia.hss.cmu.edu.