A survey has found that three-quarters of parents cite economic and social obstacles to having a second child.

The poll released last month by a Tokyo-based organization called 1 more Baby that encourages couples to become parents, found that 86.5 percent feel they can't afford two children and 64.7 percent of full-time working mothers cited "work reasons" as discouraging them from having a second child.

"The (central) government, municipalities and companies need to cooperate with each other" to correct this, said Kai Akiyama, the group's executive director.