The issue of succession in Pyongyang is somewhat immediate due to the fact that Kim himself is thought to have suffered serious health problems over the past decade, no doubt worsened by his affinity for hard liquor and a probable past drug habit.

CENTERFORSECURITYPOLICY: The House of Kim

Many countries eschewed their past habit of abusing a boom to borrow.

ECONOMIST: Latin America's economies

Ms Wolf also has a habit of stretching concepts past their breaking point such as her theory that women are more prone to mysticism than men, owing to the fact that they are capable of producing more dopamine during sex.

ECONOMIST: Tunnel of love

For the past few years I have satisfied my five cup a day habit with an Italian stovetop moka pot by Bialetti, the hourglass shaped design you see in almost every Italian kitchen.

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As the past two years' rollercoaster has shown, market forces have a confounded habit of reasserting themselves.

ECONOMIST: Mission impossible

One is that inflation spurts out of control, prompting a return to the Brazilian habit of automatically adjusting prices and wages against past inflation.

ECONOMIST: Brazil and the IMF

That is, over the past generation the most selective schools in the country got into the habit of listing a high sticker price and then discounting that price as needed in order to fill a class.

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