Olli Rehn

Olli Rehn is beginning his term as European Commissioner for Economic and Monetary Affairs just as fiscal policy pressure in Europe is becoming acute. Rehn's most important task will be to quickly establish a credible framework for fiscal policy coordination between euro zone countries. To succeed, he will have to cajole member governments, manage market expectations, and reconcile a wide range of interests. He may also face crises over several critical financing problems, notably in Greece—an immediate test with far-reaching consequences.

Rehn does not bring much relevant experience to the economics post: He was previously European Commissioner for Enlargement. In that capacity, however, he skillfully managed the politically charged process of expanding the EU and developing consensus among its current members. He also gained valuable experience in internal EU diplomacy. The upcoming job will be even tougher.

For a look at Eurasia Group's World Leaders to Watch for 2008, click here.

For a look at Eurasia Group's World Leaders to Watch for 2009, click here.