The Global Lewis Turning Point: Navigating a New Economic World of Digital Transformation, Aging, and Supply Constraints

Michael Spence argues that the global economy is undergoing a profound transformation, akin to a "global Lewis turning point." This signifies the exhaustion of surplus labor and underutilized productive capacity that fueled decades of low inflation and rapid growth, particularly from emerging economies like China and India. The era of readily available low-cost labor and supply-side abundance is ending, leading to a new economic paradigm characterized by increased supply-side constraints and inflationary pressures. This shift necessitates a move from growth driven by resource mobilization to one driven by innovation and productivity across all sectors. Spence elaborates on W. Arthur Lewis's model of developing country growth, where surplus labor from traditional sectors (e.g., agriculture) is absorbed into higher-productivity export-oriented manufacturing, leading to sustained growth without significant wage increases until the surplus labor is exhausted (the Lewis turning point). He distinguishes this national phenomenon from a global one, where the integration of large populations (like China's) into the global economy acted as a deflationary force. He also highlights the combined impact of globalization and automation on developed economies, leading to job displacement in routine middle-class jobs and contributing to political discontent, as discussed by Peter Temin. The discussion emphasizes the critical role of education and human capital development in this new era, both for middle-income countries past their national Lewis turning point and for developed economies facing automation and the need for high-margin services. Spence stresses the importance of institutional systems to support workforce transitions, especially for aging populations adapting to digital technologies. He also advocates for a multi-dimensional response to aging, including fixing underfunded pension systems and fostering flexible retirement options. For developing regions like Africa and India, the digital revolution offers a new growth pathway, provided adequate infrastructure (e.g., mobile internet) and global digital platforms are established, moving beyond the traditional labor-intensive manufacturing model. The implications extend to monetary policy, asset prices, and geopolitical relations. The end of deflationary forces suggests a different environment for central banks. The past failures in managing the distributional impacts of globalization in developed countries have left "legacies and scars," complicating strategic cooperation between nations like the US and China, despite the necessity for collaboration on global challenges like climate change. The digital transformation is presented as the "main event" going forward, offering immense potential for inclusive growth and productivity spurts, which are crucial in an aging world facing supply constraints.

all my troubles seemed so far away now it looks as though they're here to stay oh i believe in yesterday but we're not here for yesterday we're here for tomorrow

the noise to signal ratio is pretty high and it's very difficult you know to kind of keep one's focus on these you know powerful underlying sort of secular trends

the majority of me people not all but the vast majority are middle-class people living in countries that are classed as middle income and that has produced an enormous surge in the size of the global economy

this model doesn't go on forever and it sort of stops when there isn't any more surplus labor in the traditional sectors including agriculture and then you start to see a different growth pattern

we had a long period of kind of deflationary forces operating because we kept bringing more and more productive capacity into the global economy

the demand side because of the emerging markets middle income classes has got so big and the residual with you know capacity to sort of supply that increasingly rapidly growing demand is probably near near a point that will look like from a global point of view like the lewis turning point

when you combine those two effects the globalization effect and the and the digital you know the automation of of what the mit folks call routine jobs then you got you you did have a very powerful distributional kind of effect structural and distributional effect on the developed economies

the main event i think is probably going to be the digital transformation because it it has the potential it has you know worrying distributional characteristics if not managed properly in the ways you just described including education but has a huge potential for inclusive growth patterns and productivity growth

if you don't don't invest in the human capital however you do it you just won't grow right I mean it's just a two important part of input you just you can't have you know people whose education stopped at grade eight you know running a modern economy

the underfunding of pensions and social security systems is a terrible idea and and we haven't paid anywhere near enough attention