ageing — Alpha.Sources — Alpha Sources.CV

The Demographic Transition

This is the landing page for my most ambitious non-fiction project to date. My writings on demographics are scattered all over this blog—though my master’s thesis is a baseline for a lot of my thoughts—and so, incidentally, is the work of my late friend Edward Hugh on the same matter. Randy McDonald has been stalwartly keeping the old Demography.Matters blog up to date, an effort which is badly in need of a new more modern and well-publicised platform.

I have been thinking about and studying demographics and population dynamics for well over 10 years, and this is my attempt to synthesise my thoughts. I will warm up with a simple account of the demographic transition, posted below, before moving on to the principal components of this process; mortality and fertility. I will then, eventually, examine how demographics drive economic processes, principally via the effect of ageing on growth and capital flows, expanding on the work that I have already done. I will post this work in piecemeal fashion inviting comments as I go along before combining everything into a coherent volume. When Google first introduced its Blogger platform it did so, I believe, under the banner of perpetual beta, a spirit that I agree with. I will post a final, and fully edited, volume eventually, but I also want to draw back the curtain slowly and gradually, if only to keep up the publishing cadence on this site. The meaning of “landing page” in this context is no more than a repository for the list of references and the individual chapters, both of which will be updated here as I go along. Each chapter, however, will have its own independent permalink too.

Japan's disappearing population

Japan invariably looms as the central case study for the economic and societal effects of rapid fertility decline, population decline and ageing. Japan is, measured by median age, the oldest country on earth, excluding the greying millionaires of Monaco and the some-5,000 people on British St. Helena. At the end of 2021, Japan had a median age of 48.4, well ahead of the second major country on the list, Italy, with a median age of 46.8. Japan is about to get older still. According to preliminary estimates, the country’s fertility rate fell further last year, albeit marginally, while the gap between births and deaths remained wide as ever. The number of live births fell by 5.0%, to 770.774, while deaths rose by 9.0%, to 1.57 million. Japan’s rapidly ageing population is the result of a quicker and more sustained post-1945 fertility transition than in other developed economies.

China's Population

Last week we learned that China’s population shrunk last year, for the first time in 60 years, by 850K, the net result of 9.6M live births, and 10.4M deaths. It is worth taking these numbers with a pinch of salt. Accurately accounting for some 1.4B people is difficult, especially down to a sub-1M difference between deaths and births. It’s possible that future revisions will show that China’s population has been shrinking since the beginning of the 2020s, or that it won’t start shrinking until 2025 or beyond. What is clear for anyone with even cursory knowledge of Chinese demographics, however, is that this headline was coming sooner rather than later. China’s fertility rate has long since declined below the replacement level, and all-age mortality is now rising as the population ages. But does it matter that China’s population is now shrinking?

Eulogy for a cycle

This essay is full of contradictions and loose ends, so I might as well start with one in the title. This cycle is not over yet, and I am not sure that I have the definitive answer for when it will end. It is, however, well advanced with some themes and narratives. I am writing this in an attempt to make sense of and to explain, a world, which to my despair is increasingly devoid of reason. As a finance geek, I can’t get anywhere without first establishing the state of play in the economy and markets. The most salient feature since the financial crisis has been the unprecedented activism of monetary policy. In 2006, Alan Blinder described central banking in the 21st century. It is a brilliant paper but in dire need of an update given actions taken by policymakers since 2008. Central bankers were first called into action to prevent a collapse. The destruction in markets after Lehman’s failure showed that timidity or firmness in the face of moral hazard risk was impossible. Interbank markets were seizing up, banks were running out of liquidity, and the chaos quickly was spreading to the real economy. Decisive action was needed to avoid the situation spiralling out of control. Central banks had to take their role as lenders of last resort seriously.

02

Alpha Sources Blog