The Homebuilders Association of Greater Chattanooga will host a joint luncheon with the Greater Chattanooga Association of Realtors at the Chattanoogan Hotel on Tuesday, Aug. 18 from 11:30 a.m.-1 p.m. The guest speaker will be Dr. David Crowe, chief economist and senior vice president at the National Association of Home Builders (NAHB). Dr. Crowe is responsible for NAHB’s forecast of housing and economic trends, survey research and analysis of the home building industry and consumer preferences, as well as microeconomic analysis of governmental policies that affect housing. Registration begins at 11 a.m. The cost is $20 per person.