Japan's stimulus experiment

Infrastructure spending to revive the economy? Japan's been down this road before:

Japan’s rural areas have been paved over and filled in with roads, dams and other big infrastructure projects, the legacy of trillions of dollars spent to lift the economy from a severe downturn caused by the bursting of a real estate bubble in the late 1980s. During those nearly two decades, Japan accumulated the largest public debt in the developed world — totaling 180 percent of its $5.5 trillion economy — while failing to generate a convincing recovery.

...In the end, say economists, it was not public works but an expensive cleanup of the debt-ridden banking system, combined with growing exports to China and the United States, that brought a close to Japan’s Lost Decade. This has led many to conclude that spending did little more than sink Japan deeply into debt, leaving an enormous tax burden for future generations.

...Economists tend to divide into two camps on the question of Japan’s infrastructure spending: those, many of them Americans like [Treasury Secretary] Geithner, who think it did not go far enough; and those, many of them Japanese, who think it was a colossal waste.

Among ordinary Japanese, the spending is widely disparaged for having turned the nation into a public-works-based welfare state and making regional economies dependent on Tokyo for jobs. Much of the blame has fallen on the Liberal Democratic Party, which has long used government spending to grease rural vote-buying machines that help keep the party in power.

The topic is covered more deeply in the excellent book Dogs and Demons: Tales From the Dark Side of Japan. From an economic perspective dumping tens of billions in building infrastructure makes little sense. From a vote buying perspective, however...