Architecture Billings Index

"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."[1]

From the American Institute of Architects:

The index measures both regional and sector data. Listed below are the regions and sectors covered.

Regions:

  • Midwest
  • West
  • South
  • Northeast

Sectors:

  • Institutional
  • Commercial / Industrial
  • Residential
  • Mixed Practice

References
  1. https://www.aia.org/resources/10046-architecture-billings-index-abi
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