AIA: The Architecture Billings Index (ABI) slipped in August after showing mostly healthy business conditions so far this year. As a leading economic indicator of construction activity, the ABI reflects the approximate nine to twelve month lead time between architecture billings and construction spending. The American Institute of Architects (AIA) reported the August ABI score was 49.1, down from a mark of 54.7 in July. This score reflects a slight decrease in design services (any score above 50 indicates an increase in billings). ..
