Sen's liberal paradox
Social preference relations become circular and undecidable.
no social system can simultaneously
be committed to a minimal sense of freedom,
always result in a type of economic efficiency known as Pareto efficiency, and
be capable of functioning in any society whatsoever
---
This page is auto-translated from /nishio/センのリベラルパラドックス. If you looks something interesting but the auto-translated English is not good enough to understand it, feel free to let me know at @nishio_en. I'm very happy to spread my thought to non-Japanese readers.