As I prepare to step down from Pimco at the end of March, emerging markets are once again in the news for all the wrong reasons. In Argentina the currency has collapsed, Thailand and Ukraine are riven with political conflict, and Turkey is shaky.

These developments are reminiscent of the turmoil in January 1998 when I first moved to the private financial sector after 15 years at the International Monetary Fund. Then, Thailand was reeling, South Korea was on the ropes, and both Russia and Argentina were on their way to sovereign defaults.

A recurrence of the blues in emerging markets is not what conventional wisdom expected just a short while ago. For years experts had argued that these once-ailing economies had grown strong. Bank balance sheets had been strengthened. International reserves were much larger and government debt lower. Institutions were no longer financing themselves by issuing lots of short term debt that had to be repeatedly refinanced. Governments had enacted sensible reforms. Even in the harsh winds of the 2008 crisis, the emerging world did not catch a dreadful cold.