Roughly Weighted Hierarchical Simple Games
  Hierarchical simple games - both disjunctive and conjunctive - are natural generalizations of simple majority games. They take their origin in the theory of secret sharing. Another important generalization of simple majority games with origin in economics and politics are weighted and roughly weighted majority games. In this paper we characterize roughly weighted hierarchical games identifying where the two approaches coincide. 
Ali Hameed and Arkadii Slinko
math.CO cs.GT