Ross Gittins: Economic history ignored leads to the inevitable

Ross Gittins is the economics editor of the Sydney Morning Herald.

When the Queen asked economists why so few of them had foreseen the global financial crisis, our professor Geoff Harcourt and some other academics petitioned her to say, among other things, that one reason was their profession's loss of interest in economic history.

That sad truth was demonstrated convincingly by two American professors, Carmen Reinhart and Kenneth Rogoff, in a book which has since become a modern classic, This Time Is Different: Eight Centuries of Financial Folly. It's just out in paperback, published by Princeton University Press.

In their landmark study of hundreds of financial crises in 66 countries over 800 years, Reinhart and Rogoff find oft-repeated patterns that ought to alert economists when trouble is on the way. One thing stops them waking up in time: their perpetual belief that ''this time is different''. 

But, as we're witnessing at present, even when economists and financial market players have been hit over the head by reality, their ignorance of history stops them understanding what happens next. Wall Street and Europe fondly imagined the Great Recession was behind them, only to discover it's still rolling on....