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Answer» What is Architecture Billings Index mean? From the American Institute of Architects: "The Architecture Billings Index is derived from a monthly “Work-on-the-Boards” survey and produced by the AIA Economics & Market Research Group. Based on a comparison of data compiled since the survey’s inception in 1995 with figures from the Department of Commerce on Construction Put in Place, the findings amount to a leading economic indicator that provides an approximately nine to twelve month glimpse into the future of nonresidential construction activity. The diffusion indexes contained in the full report are derived from a monthly survey sent to a panel of AIA member-owned firms. Participants are asked whether their billings increased, decreased, or stayed the same in the month that just ended. According to the proportion of respondents choosing each option, a score is generated, which represents an index value for each month." The index measures both regional and sector data. Listed below are the regions and sectors covered. Regions: MidwestWestSouthNortheastSectors: InstitutionalCommercial / IndustrialResidentialMixed Practice reference
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