Kim Jong-Un doesn’t place much faith in capitalism or markets, but those markets’ performance this week indicate their own view of North Korea’s emerging nuclear capability.Last Saturday the U.N. Security Council unanimously imposed sanctions on North Korea over its continued nuclear missile testing. Under the plan, it may no longer export coal, iron, iron ore, lead, lead ore or seafood. The country must also refrain from deals that have North Koreans sent to other countries to provide labor. In a very significant break with its own foreign policy, China (North Korea’s biggest trading partner) joined in supporting the resolution.Moreover, this past week’s heated rhetoric from North Korea and its leader Kim Jong Un (i.e., threats to strike t...