In September 2010, The Project Syndicate, which markets itself as providing the “Smartest Op-Ed Articles from the World’s Thought Leaders” gave space to Martin Feldstein – Japan’s Savings Crisis. Like a cracked record, Feldstein rehearsed his usual idiotic claims that interest rates in Japan would rise because “of the continuing decline in Japan’s household saving rate” and that “the higher interest rate would eventually raise the government’s interest bill by about 4% of GDP. And that would push a 7%-of-GDP fiscal deficit to 11%”. Then, so the story goes, “This vicious spiral of rising deficits and debt would be likely to push interest rates even higher, causing the spiral to accelerate”. At which point, Japan sinks slowly into the sea never to be seen again. It turns out that the real world is a little different to what students read about in mainstream macroeconomics textbooks. At the risk of understatement I should have said very (completely) different. Better rephrase that to say – what appears in mainstream macroeconomics textbooks bears little or no relation to the reality we all live in. Anyway, events over the last week in Japan have once again meant that this has been just another week of humiliation for mainstream macroeconomics – one of many.