John Public's Practice Game Web Page
This is an example of a page that you will be using during the Tragedy of the Commons game. Read it to get a feel for how to play and interpret the game (you can't use the submit button here but the rest of the page is identical to the one you will be using. This page shows the results of two rounds of the game - you will play several more rounds than that. Notice that names of players can be made available or not.
Welcome, John Public! This is your Web Page for playing the Tragedy of the Commons Game. During the course of the game, please stay on this page. Good luck and enjoy!
Some facts to remember:
- Cows cost $100 each.
- Each round you start with $10,000 (so, if you enter more than 100 cows, only 100 cows will be put on the commons).
- Your profits will be determined by how fat your cows are at the end of the year. That will depend on the following:
- How many cows you put on the commons.
- How many cows other ranchers put on the commons.
- You CAN lose money, since your cows cost $100 each. If the commons is seriously overgrazed, your cow will die.
CLASS RESULTS
Interpreting the commons picture: The green area is the size of the commons. When just filled with cows, the collectively optimal number of cows is on the commons. Green area without cows indicates that grazing MORE cows would increase community milk production. Grey cows indicate that too many cows are being grazed and grazing FEWER cows would increase community milk production.
Details of Round 1 No. of Revenue Profit Name Cows or Loss Per Cow 30 520 17 50 867 17 29 503 17 17 295 17 88 1525 17 50 867 17 48 832 17 10 173 17 40 693 17 2 35 17 40 693 17 70 1213 17 25 433 17 40 693 17 35 607 17 Summary of Round: 1 Actual Optimal* * = optimal would max total milk production Farmers: 15 No optimal # Cows: 574 300 Total milk: $ 9949.33 $ 60000 Milk/rancher : $ 663.28 $ 4000 |
Details of Round 2 No. of Revenue Profit Name Cows or Loss Per Cow Goodwin, Emil 50 5406 108 Barron, Henki 30 3244 108 Okamoto, Risa 17 1838 108 Paulraj, Mall 18 1946 108 Mcclure, Kimb 15 1622 108 Murray, Mark 40 4325 108 Iwerks, Aliso 32 3460 108 Deets, Megan 25 2703 108 Smith, Eli 24 2595 108 Mezan, Kate 30 3244 108 Laughrey, Sar 20 2162 108 Silver, Mark 45 4866 108 Harrington, A 50 5406 108 Public, John 30 3244 108 Chi, Jennifer 21 2271 108 Lundgren, Kar 20 2162 108 Summary of Round: 2 Actual Optimal* * = optimal would max total milk production Farmers: 16 No optimal # Cows: 467 320 Total milk: $ 50494.37 $ 64000 Milk/rancher: $ 3155.89 $ 4000 |
Your Results So Far:
No. of Revenue Profit Cows or Loss Per Cow 50 867 17 30 3244 108