But can he make them have babies?

Japan: Abe’s master plan | The Economist

"Abenomics"  is getting some good reviews for its sudden improvement to the Japanese economy.  It also seems to be a massive experiment which, if successful, would be seen as a strong win by Krugman for his take on economics.

Yet, in this Economist article, there is little to suggest what he can do about the major long term demographic problem for his country.   In short, if the Japanese are never going to accept high levels of immigration, how are they ever going to be persuaded to have more babies?