환경문제에 적극적인 가구가 늘어나는 경우 가구당 평균 지불의사금액 역시 3.3%∼21.6% 증가할 것으로 판단된다.
If the number of households active in environmental issues increases, the average willingness to pay per household is also expected to increase by 3.3% to 21.6%.