| The communication cost of selfishness: ex post implementation Recent countries visiting this post |  |
 | 4 | United States |
 | 3 | |
 | 3 | China |
 | 1 | Russian Federation |
| The communication cost of selfishness: ex post implementation Recent countries visiting this post | |
| 4 | United States |
| 3 | |
| 3 | China |
| 1 | Russian Federation |