First-quarter growth results are now in for the major advanced economies; they look like this:

Wait, what? Japan as star performer? What’s that about?

Actually, no mystery. From Bloomberg:

Japan’s economy expanded faster than estimated in the first quarter, boosted by reconstruction spending that’s poised to fade just as a worsening in Europe’s crisis threatens to curtail export demand.

So Japan, which is spending heavily for post-tsunami reconstruction, is growing quite fast, while Italy, which is imposing austerity measures, is shrinking almost equally fast.

There seems to be some kind of lesson here about macroeconomics, but I can’t quite put my finger on it …