After decades of disappointment, investors in Japanese equities have had great returns since Prime Minister Shinzo Abe took office three years ago. After such a long wait for a revival, the good news is that many think it’s not over yet.

The trigger, of course, was Abe's "Abenomics" stimulus programme, which has jump-started the economy after decades of stagnation, providing fiscal stimulus for the economy, quantitative easing and structural reforms aimed at boosting long-term growth.