I can envisage two ways by which the world might grow out of its debt overhangs without... a collapse: a surge in private and public investment in the deficit countries or a surge in demand from the emerging countries. Under the former, higher future income would make today’s borrowing sustainable. Under the latter, the savings generated by the deleveraging private sectors of deficit countries would flow naturally into increased investment in emerging countries.
Yet exploiting such opportunities would involve radical rethinking. In countries like the UK and US, there would be high fiscal deficits over an extended period, but also a matching willingness to promote investment. Meanwhile, high-income countries would have to engage urgently with emerging countries, to discuss reforms to global finance aimed at facilitating a sustained net flow of funds from the former to the latter.
Unfortunately, nobody is seized of such a radical post-crisis agenda. Most people hope, instead, that the world will go back to being the way it was. It will not and should not. The essential ingredient of a successful exit is, instead, to use the huge surpluses of the private sector to fund higher investment, both public and private, across the world. China alone needs higher consumption.
Martin Wolf, FT, 2/23