Why is the economy bad in North Korea, and what is the world doing to it ?. ( I need help on this…)

That programme led to the first US-North Korean nuclear crisis in the early 1990s. Brookings Papers on Economic Activity 1991:1, Macroeconomics six to eight nuclear weapons, and could do so, probably by the end of the year at the latest. Is only made worse by the regime's isolation from the rest of the world.

Explanation:

it would be  

germany had to pay all damages related to the war.

and i think

germany had to take sole responsibility for the war.

it affected it because the kingdoms (with trade) slowly got richer and richer.