Société Générale has advised clients to be ready for a possible "global economic collapse" over the next two years, mapping a strategy of defensive investments to avoid wealth destruction.In a report entitled "Worst-case debt scenario", the bank's asset team said state rescue packages over the last year have merely transferred private liabilities onto sagging sovereign shoulders, creating a fresh set of problems.
Overall debt is still far too high in almost all rich economies as a share of GDP (350pc in the US), whether public or private. It must be reduced by the hard slog of "deleveraging", for years.
"As yet, nobody can say with any certainty whether we have in fact escaped the prospect of a global economic collapse," said the 68-page report, headed by asset chief Daniel Fermon. It is an exploration of the dangers, not a forecast.
The underlying debt burden is greater than it was after the Second World War, when nominal levels looked similar. Aging populations will make it harder to erode debt through growth. "High public debt looks entirely unsustainable in the long run. We have almost reached a point of no return for government debt," it said.
Inflating debt away might be seen by some governments as a lesser of evils.
If so, gold would go "up, and up, and up" as the only safe haven from fiat paper money. Private debt is also crippling. Even if the US savings rate stabilises at 7pc, and all of it is used to pay down debt, it will still take nine years for households to reduce debt/income ratios to the safe levels of the 1980s.
Société Générale is one of the main European financial services companies and also maintains extensive activities in others parts of the world. It is one of the oldest banks in France.