Maybe this is one of the reasons Japan's Abe decided to go visit the war shrine, thinking his "Abenomics" has won...
From January 4 to December 30, 2013:
Japan's Nikkei: up over 50%
Hong Kong's Hang Seng Index: flat
Shanghai's Composit Index: down 8%
South Korea's Kospi: flat
(Chart created at stockcharts.com)
Of course the depreciating currency of Japan has helped a great deal.
Japanese yen, from November 2012 to December 2013:
The Japanese government and the South Korean government have reduced the size of the currency swaps since October 2012 to an insignificant level ($10 billion). Though the South Korean government has since expanded the currency swaps with China, it now has less ammo to cheapen its own currency.