Every indexed document

R. M. (1984). The evolution of cooperation. New York: Basic Books.

J. (1990). Impure altruism and donations to public goods: A theory of warm-glow giving.

one might have argued that perfect spheres

consider the following analogy. One might wonder why

on Kant’s concepts of autonomy and humanity

suggesting group selection is weak (i.e. there are few

since the likelihood that signals are right around the threshold is low.

since group selection can be weak relative to individual selection.

2011 ). This explanation suggests that the ways we deceive ourselves

even though passengers want nothing to do with

presumably because if they knew they had the STD

if our motive were to feel good by giving

to avoid being asked for a contribution by the Salvation

lead us to overeat now that food is abundant).

it would be common knowledge that we had the option to give and chose

then we ought to be more likely to give when

we should not be impacted by an explicit request.

or perhaps proximally to feel good by the act of

even though no new information is conveyed by the request. In a

even though it also makes it easier to vote. In fact