The Wall Street firm, which last year topped the global dealmaking charts, is not yet concerned about the impact declining oil prices and China’s slowing economy will have on dealmaking. “We’ll have to see, obviously, if markets stay under stress … but we wouldn’t say that two weeks of volatile markets would stop a pretty powerful M&A trend,” Goldman CFO Harvey Schwartz said on the bank’s fourth-quarter analyst call on Wednesday. The need for Goldman to maintain a strong business advising companies on deals is crucial.