Soaring commodity prices, rising headline inflation and weakening economic growth: for those whose memories stretch back to the 1970s, this combination brings painful memories. It reminds them of the mistakes made by the central banks that accommodated the upsurge in inflationary expectations rather than contained them. Inflation was finally brought back under control in the early 1980s. But the costs of letting it escape were huge. Could we be making the same mistakes again?