As Yoshihide Suga replaces Shinzo Abe as Japanese Prime Minister, radical departures from Mr. Abe’s broad economic program are unlikely. But Mr. Suga could still leave a lasting impact if he declines to repeat his predecessor’s greatest mistakes.
Japan has actually already seen a lot of Suganomics. The incoming prime minister was Mr. Abe’s right-hand man. On the supply-side, Mr. Suga was an advocate of Mr. Abe’s overtures on Asian trade, attempts to boost the number of foreign workers, and was also closely involved with privatization…