Before currency reform, food price in Pyongyang and Chongjin (in old denomination per kg) Between Sept. and Nov., 2009, rice: 1800~2400 won, corn: 800~1100 won After currency reform, rice price in Pyongyang and Chongjin (in new denomination per kg) date rice pricein new won contributing factor Dec.2009 1st ~ 9th 20~ 25 government institutes currency reform1 new won = 100 old won 10~15th 30~ 45 price in new currency would not settle properly, and price rises 20~30th 50~ 60 Public Security impose ban on the use of foreign currency on Dec. 28; price rises Jan.2010 1st~5th 80~120 price doubled...