Dollar falls against yen after U.S. data, BOJ decision

The dollar fell by more than 1 percent against the yen on Tuesday as weak U.S. retail sales data compounded investors' search for safety as oil tumbled and equity markets globally turned lower. The yen was also boosted by the Bank of Japan's decision to leave interest rates unchanged. Six weeks after shocking markets by cutting rates into negative territory, Governor Haruhiko Kuroda said the Bank of Japan would take time to look at the impact, but could move again before the cut had worked its w