Economist on the Global Housing Boom

[HenryTo]

This is a definitely a must-read:

http://www.economist.com/opinion/displayStory.cfm?Story_id=4079027

Notable quotes:

According to estimates by The Economist, the total value of residential property in developed economies rose by more than $30 trillion over the past five years, to over $70 trillion, an increase equivalent to 100% of those countries' combined GDPs. Not only does this dwarf any previous house-price boom, it is larger than the global stockmarket bubble in the late 1990s (an increase over five years of 80% of GDP) or America's stockmarket bubble in the late 1920s (55% of GDP). In other words, it looks like the biggest bubble in history.

Interest-only mortgages are all the rage, along with so-called “negative amortisation loans” (the buyer pays less than the interest due and the unpaid principal and interest is added on to the loan). After an initial period, payments surge as principal repayment kicks in. In California, over 60% of all new mortgages this year are interest-only or negative-amortisation, up from 8% in 2002. The national figure is one-third.

But even if prices in America do dip, insist the optimists, they will quickly resume their rising trend, because real house prices always rise strongly in the long term. Robert Shiller, a Yale economist, who has just updated his book “Irrational Exuberance” (first published on the eve of the stockmarket collapse in 2000), disagrees. He estimates that house prices in America rose by an annual average of only 0.4% in real terms between 1890 and 2004. And if the current boom is stripped out of the figures, along with the period after the second world war when the government offered subsidies for returning soldiers, artificially inflating prices, real house prices have been flat or falling most of the time. Another sobering warning is that after British house prices fell in the early 1990s, it took at least a decade before they returned to their previous peak, after adjusting for inflation.

One of the best international studies of how house-price busts can hurt economies has been done by the International Monetary Fund. Analysing house prices in 14 countries during 1970-2001, it identified 20 examples of “busts”, when real prices fell by almost 30% on average (the fall in nominal prices was smaller). All but one of those housing busts led to a recession, with GDP after three years falling to an average of 8% below its previous growth trend. America was the only country to avoid a boom and bust during that period. This time it looks likely to join the club.