The average expected benefits of sharing behavior

U j 1 = x ( V j + ( 1 α ) Δ V ( 1 β ) C ) + ( 1 x ) ( V j ( 1 β ) C )

Expected benefits of positive sharing behavior

U j 2 = x ( V j + E j ) + ( 1 x ) V j

Expected benefits of negative sharing behavior

U ¯ j = y U j 1 + ( 1 y ) U j 2