Investors seem certain about this: The Federal Reserve is going to raise interest rates this week for the third time this year.
They're less sure about what the central bank might have in store for 2018, and they will look to Janet Yellen's final news conference as Fed chair Wednesday for any clues.
Will the Fed's policymaking change once Yellen steps down in February and is succeeded by Jerome Powell? Powell was a Yellen ally who backed her cautious stance toward rate hikes in his five years on the Fed's board. Yet no one can know how his leadership or rate policy might depart from hers.
What's more, Powell will be joined by several new Fed board members who, like...