Business confidence among Japan's largest manufacturers is at its lowest since Tokyo introduced measures to kick-start the struggling economy more than three years ago, a central bank survey showed Monday.
The yen dropped and higher-risk currencies surged Tuesday as markets appeared to give Hillary Clinton the edge over Donald Trump in the first U.S. presidential debate.
The yen retreated Friday as Japanese officials repeated warnings they could step into currency markets to tame the soaring unit, which threatens profits at the country's exporters.
Japan's exports tumbled and the country logged a surprise trade deficit in August, data showed Wednesday, reviving concerns about the economy just before the Bank of Japan wraps up a closely watched meeting.
The yen extended its gains in Asian trading Tuesday as the Japanese and U.S. central banks kick off their latest policy meetings.
The dollar extended losses on Friday in Asia as investors bet against a September Federal Reserve interest rate hike following another weak batch of U.S. data.
The yen retreated in Asian trade following a report that the Bank of Japan is considering cutting borrowing costs further into negative territory when it meets next week.
With the merger of FamilyMart Co. and Uny Group Holdings Co. on Sept. 1, the integrated convenience store is now competing as one of the "big three" alongside Seven-Eleven Japan Co., Japan's largest chain, and Lawson, Inc.
Traders bought the yen and dumped the South Korean won Friday as financial markets were jolted by news that North Korea conducted another nuclear test, reigniting geopolitical tensions.
Japan's economy barely grew in the second quarter, revised data showed Thursday, further calling into question Prime Minister Shinzo Abe's big-spending easy-money policy drive.