Sharp yen falls are negative and undesirable for the Japanese economy as they raise uncertainty over the outlook and make it difficult for companies to draw up business plans, Bank of Japan Governor Haruhiko Kuroda said Monday after the Japanese currency tumbled to a 23-year low against the dollar.In a fresh verbal warning, Finance Minister Shunichi Suzuki said during a parliamentary session he sees more of the "negative side" of yen weakness emerging. But he refrained from commenting on the possibility of intervention in the foreign exchange market to arrest the yen's rapid falls.The BOJ w…READ FULL ARTICLE