Recently, Dogan, Dogan and Yildiz (2015) presented a new efficiency notion for the random assignment setting called SW (social welfare)-efficiency and characterized it. In this note, we generalize the characterization for the more general domain of randomized social choice.
Cite
@article{arxiv.1510.00460,
title = {Characterizing SW-Efficiency in the Social Choice Domain},
author = {Haris Aziz},
journal= {arXiv preprint arXiv:1510.00460},
year = {2015}
}