North Korea is a militarized, male-dominated society, but it is women who are making the money as the insular nation allows an unofficial market-based economy to take shape.

Women earn more than 70 percent of household income in North Korea, mainly as traders in the informal markets that have proliferated in recent years, research by the South Korean government-run Korea Institute for National Unification (KINU) found.

That is despite women making up only about half of the 12 million economically active North Koreans, experts say. Most men are stuck in state jobs that pay little or serve in the army.