(Reuters) -An emerging U.S.-Japanese trade deal could unlock major investment, avert a potential shock to the global economy and may deliver political wins for both U.S. President Donald Trump and Japanese Prime Minister Shigeru Ishiba, though many specifics of the agreement remain unclear.

Japan's Prime Minister Shigeru Ishiba recently confirmed the deal, and the country's chief trade negotiator earlier said in a Facebook post that he had visited the White House, adding the hashtag "Mission accomplished".