North Korea's 2015 shock cost 1.1% of output and a distribution that did not come back

A 1.1% contraction is the size of loss that vanishes into a data revision in most economies, and that is what North Korea recorded in 2015 ^[10]. What the Bank of Korea reports is that the shape of the distribution underneath that number changed by a statistically significant margin and stayed changed ^[2].

The transmission path is scarcity pricing. Rainfall in Hwanghae Province, the main grain area, fell 34.8% over May to August 2014 [c5b]; hydroelectric generation went from 13 billion kWh in 2014 to 10 billion kWh in 2015 ^[6], and nighttime light intensity at major power plants dropped 29.8% that year ^[7]. On the trade side, steel product exports fell 54.9% and mineral products 14.7% ^[9]. Shortage rewards whoever holds stock, capital, or the permission to move goods across a checkpoint. The researchers describe upper strata with capital and political connections finding room to profit through arbitrage and rent-seeking, while lower and middle earners took the loss in full, which is what expanded the bottom ^[13].

That asymmetry is a property of the institutional gap, not of the weather. The jangmadang system grew from farm produce into general consumer goods and now shows market mechanisms operating in labour and capital ^[15], but fair competition rules, private property rights, and taxation and redistribution were never built alongside it ^[12]. So there is no mechanism in the system that pulls a widened gap back once output recovers. Growth arrives through the same channels that concentrated the gains during the shortage.

Two cautions on the arithmetic, for anyone tempted to quote these figures onward. The power figure is rounded: 13 billion to 10 billion kWh is a 23.1% decline, not the roughly 30% the report describes, so the headline percentage is presumably computed off unrounded series that are not shown ^[16]. And the mineral export decline matches the fall in total trade with China to the decimal ^[8][9], which is the kind of coincidence worth checking against the underlying tables before building on it.

The measurement caution is larger. This is defector survey data collected between 2011 and 2020, describing recalled market income ^[1], and the comparison sets four pre-shock years against five post-shock years ^[17]. Defector samples are not random draws on the North Korean population; they skew by province, by year of exit, and by the resources needed to leave. What the study can support is the direction and the persistence, not a precise Gini for a country that publishes nothing. The Bank of Korea's own conclusion is stated with matching care: a recovery in economic growth alone, it writes, "may not be enough to reverse the changes in income distribution that occurred during the economic shock" ^[14].

That sentence has a use outside Pyongyang. It is a statement about what happens when roughly 70% of household income comes from markets ^[11] and none of it comes from anything that transfers.