Société Générale bank tells clients how to prepare for potential 'global collapse' (Ambrose Evans-Pritchard)

Explosion of debt: Japan's public debt could reach as much as 270pc of GDP in the next two years. A bullet train is pictured speeding past Mount Fuji in Fuji city, west of Tokyo Photo: Reuters

Nov. 18, 2009 (Telegraph) -- 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.

Under the French bank's "Bear Case" scenario (the gloomiest of three possible outcomes), the dollar would slide further and global equities would retest the March lows. Property prices would tumble again. Oil would fall back to $50 in 2010.

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