This is Part 2 of my blog posts on population shifts in Japan. In – What is the problem with rising dependency ratios in Japan – Part 1? (October 28, 2019) – we considered the evolution of dependency ratios in Japan as a precursor to considering the nature of problems that accompany a rising dependency ratio. The purpose is to disabuse the public debate of the idea that rising dependency ratios constitute a fiscal crisis and point to the increasing prospect of fiscal insolvency. That erroneous assertion has been used as one of the justifications for pursuing austerity policies, which damage growth, cause rising unemployment and generally miss the point. The problem with this construction is that the solution adopted by the ‘sound finance’ lobby (austerity) to their ‘non problem’ only serves to exacerbate the real problem. Today, we will consider the productivity challenge that lies at the heart of the issues a nation with a rising dependency ratio will face.