James Carville won the Presidency for Bill Clinton in 1992 with a sign in the campaign’s headquarters saying “The economy, stupid”. Maybe there should be a sign in the Federal Reserve saying “Demography, stupid”.
Central bankers, like investors, have usually tended to ignore or underplay the influence of demographic factors over the short and medium term. The size and age distribution of the population changes very gradually, and in a fairly predictable manner, so sizable shocks to asset prices from demographic changes do not happen very often.
That does not mean that demography is unimportant. The cumulative effects can be very large over long periods of time. Apart from technology, there is a case for arguing that demography is the only thing that matters in the very long run. But demographic changes usually emerge very slowly, so they do not trigger sudden fluctuations in the determinants of asset prices, notably the economic cycle and monetary policy.
However, there are exceptions to this rule, and we may be living through an important exception at the present time. It seems that the Federal Reserve is starting to recognise that the decline in the equilibrium interest rate in the US (r*) has been driven not by temporary economic “headwinds” that will reverse quickly over the next few years, but instead has been caused by longer term factors, including demographic change.
Because these demographic forces are unlikely to reverse direction very rapidly, the conclusion is that equilibrium and actual interest rates will stay lower for longer than the Fed has previously recognised. Of course, the market has already reached this conclusion, but it is important that the Fed is no longer fighting the market to anything like the same extent as it did in 2014-15. This considerably reduces the risk of a sudden hawkish shift in Fed policy settings in coming years.
Furthermore, greater recognition of the permanent effects of demography on the equilibrium real interest rate has important implications for inflation targets, the fiscal stance and supply side economic policy. These considerations are now entering the centre of the debate about macro-economic policy. Read more