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