Correlation between outcomes, not within them.
If both players prefer to be in the same box, they are aligned. As we add indifference and opposing choices, they become unalienable.
In your example, both people have the exact same ordering of outcome. In a classic PD, there is some mix.
Totally unaligned (constant value) example:
0/2 2⁄0
2/0 0⁄2
Correlation between outcomes, not within them. If both players prefer to be in the same box, they are aligned. As we add indifference and opposing choices, they become unalienable. In your example, both people have the exact same ordering of outcome. In a classic PD, there is some mix. Totally unaligned (constant value) example: 0/2 2⁄0 2/0 0⁄2