At home, he may run into more constraints (as second-term presidents tend to) if he essays bold policies, such as introducing retirement savings accounts or trying to simplify the tax code.

ECONOMIST: George Bush

In a May 4, 2011 interview, he told me that he has run into this problem many times due to his frequent travel schedule and his inability to get objective, expert information about hotels that could help him pick the right hotel for his specific needs.

FORBES: The World's Hotels Are Oyster's Oyster

Mr Nazarbaev has already said he will run again, though a scandal currently unravelling in America may push him into early retirement.

ECONOMIST: A region whose leaders find it hard to say goodbye

That may change, however, and he might yet force Mr Toledo into a run-off.

ECONOMIST: Peru

In addition, his bankruptcy plan may still run into opposition from his former wife, Jamie McCourt, with whom he is locked in divorce proceedings.

FORBES: Frank McCourt Is Taking A Big Risk With Dodgers Bankruptcy Filing