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Given the choice, would you accept to live in a society where happiness and prosperity is guaranteed for all on the condition that one single person be kept permanently unhappy? Is the well-being of thousands of people “worth” the sacrifice and suffering of a single innocent child? Such is the dilemma to which the inhabitants of the utopian city of Omelas are confronted in Ursula Le Guin’s philosophical short-story “The Ones Who Walk Away from Omelas”. In her parable, most people are ultimately able to come to terms with the atrocity. The few citizens who cannot end up walking away from the city — nobody knows where they go and they are never heard from again.

Adair Lord Turner, former Chairman of Great Britain’s Financial Services Authority and current Senior Fellow at the Institute for New Economic Thinking, argued in a keynote address to the Federal Reserve Bank of Chicago on Thursday that central banks must be equipped in future to address the dangers of excessive private sector leverage, using both pre-emptive interest rate policy and macro-prudential policy tools.

In our two papers, we analyze how changes in personal and functional (wages versus profits) income distribution interact to produce different macroeconomic outcomes in different countries. On the basis of a stock-flow consistent model calibrated for the United States, Germany, and China, simulations suggest that a substantial part of the increase in household debt and the decrease in the current account in the United States since the early 1980s can be explained by the interplay of rising (top-end) household income inequality and certain institutions (e.g. easy access to credit, privately financed education and health care systems).