The massive Government Pension Investment Fund must be ready to buy more stocks should Prime Minister Shinzo Abe¡¯s policies succeed in reviving the economy, according to its head of research.

¡°We may see structural reform and Japan as we know it may change,¡± Tokihiko Shimizu, director general of the research department at the ?130 trillion fund, said in an interview Wednesday in Tokyo. ¡°If we subscribe to that view, we must commit to different investment behavior than just trading within a boxed range. This is particularly true for local shares.¡±

While Japanese equity rallies faltered quickly in the past, this one may be longer-lasting, Shimizu said.