A super-aging society has increased the cost of maintaining the social security system and the burden on the family, while it has decreased (reduced ) the labor force population.
A super-aging society has increased the cost of maintaining the social security system and the burden on the family, while it has decreased (reduced ) the labor force population.
超高齢化社会 a super-aging society
社会保障費 the cost of maintaining the social security, the social security cost, the social security expenseなど
増加する increase
減少する reduce, decrease
労働力人口 labor force population
一方、while
今その状態にあるということの表現として、現在完了形を用いています。