A New Macroeconomic Strategy

Both neo-Keynesians and supply-siders have tried and failed to overcome the high-income economies’ persistently weak performance in recent years. It is time for a new approach, one based on sustainable, investment-led growth.

NEW YORK – I am a macroeconomist, but I dissent from the profession’s two leading camps in the United States: the neo-Keynesians, who focus on boosting aggregate demand, and the supply-siders, who focus on cutting taxes. Both schools have tried and failed to overcome the high-income economies’ persistently weak performance in recent years. It is time for a new strategy, one based on sustainable, investment-led growth.

The core challenge of macroeconomics is to allocate society’s resources to their best use. Workers who choose to work should find jobs; factories should deploy their capital efficiently; and the part of income that is saved rather than consumed should be invested to improve future wellbeing.

It is on this third challenge that both neo-Keynesians and supply-siders have dropped the ball. Most high-income countries – the US, most of Europe, and Japan – are failing to invest adequately or wisely toward future best uses. There are two ways to invest – domestically or internationally – and the world is falling short on both. 

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