Overview of the NYC and the USA economy and what to expect in 2015. Gregory Heym is Executive Vice President and Chief Economist for Terra Holdings, one of the nation's largest privately-held real estate services firms, and parent company to Brown Harris Stevens and Halstead Property. As the creator of ValuExchange, Gregory oversees the most comprehensive database of residential property sales in Manhattan and Brooklyn. He leads a fully-dedicated team of research professionals who develop and prepare Market Reports for Manhattan, Brooklyn, Connecticut, the Hamptons, New Jersey, Riverdale and Palm Beach. He is also the creator of The Heym Report, a monthly look at the national and local economies.