The Japanese yen rose to its highest level against the Korean currency in more than two years last month.<br />According to the Bank of Korea,... a hundred yen would buy,... on average, around one-thousand-30-and-a-half Korean won.<br />That was 31 won higher than the average rate in December... and the highest in 26 months.<br />The Japanese currency is considered a safe haven for investors, amid growing concerns of a slowdown in the global economy. <br />An expensive yen is bad news for Koreans traveling to Japan, but encouraging news for Korean businesses exporting to Japan. <br />