The latter half of the 20th century was a golden age for growth. After the second world war, a baby boom produced a cohort of workers who were better educated than any previous generation and who boosted average productivity as they gained experience. In the 1970s and 1980s women in many rich countries flocked into the workforce. The lowering of trade barriers and the integration of Asia into the world economy later led to much more efficient production. Life got better. In 1950 nearly a third of American households were without flush toilets. By 2000 most of them could boast of owning at least two cars.
Many of those growth-boosting trends have since stalled or gone into reverse. The skills of the labour force have stopped improving as fast. Ever more workers are retiring, women’s labour-force participation has flattened off and little more is to be gained by expanding basic education. As consumers have become richer, they have spent more of their income on services, for which productivity gains are harder to come by. Sectors like transport, education and construction look much as they did two decades ago. Others, such as university education, housing and health care, are lumbered with red tape and rent-seeking.
Ageing has not just hurt growth directly, it has also made electorates less bothered about gdp. Growth most benefits workers with a career ahead of them, not pensioners on fixed incomes. Our analysis of political manifestos shows that the anti-growth sentiment they contain has surged by about 60% since the 1980s. Welfare states have become focused on providing the elderly with pensions and health care rather than investing in growth-boosting infrastructure or the development of young children. Support for growth-enhancing reforms has withered.
Moreover, even when politicians say they want growth, they act as if they don’t. The twin problems of structural change and political decay are especially apparent in Britain, which since 2007 has managed annual growth in GDP per person averaging just 0.4% (see Britain section). Its failure to build enough houses in its prosperous south-east has hampered productivity, and its exit from the European Union has damaged trade and scared off investment. In September Liz Truss became prime minister by promising to boost growth with deficit-financed tax cuts, but succeeded only in sparking a financial crisis.
