Not if those same factors also show up it the decision you’re planning to make based on those preferences.
They don’t: collective, political decisions are simply not supposed to take individuals’ incentives into account as inputs, but instead to change those incentives as output.
That’s still evidence that the value of said incentives is larger than any preference I have for chocolate over vanilla.
Which is actually why those incentives are confounding factors when we’re trying to measure your actual preferences.
Not if those same factors also show up it the decision you’re planning to make based on those preferences.
They don’t: collective, political decisions are simply not supposed to take individuals’ incentives into account as inputs, but instead to change those incentives as output.
How did we go from “preferences” to “incentives” and what distinction are you trying to make here?