The pilot flying said he believed that only the pilot in command ,in this case the pilot monitoring, could call for a go-around. He said this was company policy resulting from a tail strike event that had occurred when an co-pilot had initiated a go-around . this statement contrasted with Asian’s written policy in the 777 pilot operations manual ,which stated, “the decision to make a missed approach rests with the captain. However ,when the co-pilot flies the aircraft as pilot flying ,the co-pilot can make a missed approach. “ In addition ,multiple Asiana managers and pilots said there was no company policy preventing junior crewmembers from initiating a go-around .However , the Asiana pilot operation manual states only that the captain has the “authority and responsibility to make a landing or missed approach (go-around )”; it does not address the authority of the first officer to initiate a go-around.