Michael Holland, Holland & Co. Chairman and Founder, thinks the Fed is far more important for markets than a U.S.-China trade deal. Dana Telsey, Telsey Advisory Group CEO & Chief Research Officer, believes retailers will follow in Amazon's footsteps with one-day shipping. Mohamed El-Erian, Allianz Chief Economic Adviser and Bloomberg Opinion Columnist, says it is not up to central banks to get out of the negative rates experiment. Mike Darda, MKM Partners Chief Economist & Macro Strategist, says investors should be tactically cautious going into 2020. David Kotok, Cumberland Advisors Co-Founder & CIO, says negative interest rates are at a peak.