New York, Nov 6 (IANS): A dictator's death may not lead to regime change in a country, according to a study.

The researchers studied all 79 cases of dictators dying in office between 1946 and 2012 and found the ruling regime remained intact through the following year 87 per cent of the time.

By contrast, in all other forms of leadership exit in autocracies -- including coups, civil wars and foreign intervention -- the regime remained intact for one year in only 43 per cent of cases.

"Episodes of instability that come on the heels of the dictator's death tend to dominate news headlines. But our findings suggest such events are far from the norm. Instability rarely results from a dictator's passing," said Erica Frantz, Assistant Professor at the Michigan State University.

Eleven of the 55 dictators around the world are at least 70 years old and in declining health, including Robert Mugabe of Zimbabwe (who's 92) and Raul Castro of Cuba (85).

"This means that a fifth of the world's dictatorships will face a leadership turnover in the not-too-distant future," Frantz added.

So why does a dictator's death in office most often lead to a continuation of the status quo?

Unlike coups or departures spurred by elite consensus, a leader's death of natural causes is not politically motivated. If dictators manage to remain in office until the very end, it means the regime's followers by and large have remained loyal.

"We can therefore infer that dying dictators leave behind a set of players who support the status quo and the perks that it affords them. Such individuals have a strong incentive to converge on the selection of a successor in order to preserve their privileged access to the spoils of office," the author said.

The study was published in the Journal of Democracy.