
The Architecture Billings Index (ABI), produced by the AIA Economics & Market Research Group, is based on responses to the American Institute of Architect's (AIA's) monthly Work-on-the-Boards survey, which asks the principals and partners of AIA member-owned architectural firms whether their billing activity for the previous month grew, declined, or remained flat. ‘The chief architect of this project is the President, with whom Dr. ‘John was indisputably the architect of his own misfortune’. ‘the architects of the reform programme’.

Understanding the Architecture Billings Index (ABI) A person who is responsible for inventing or realizing a particular idea or project.

Commercial and industrial building activity includes the construction of hotels, office buildings, multi-family residences, schools, hospitals, and other institutional buildings.The Architecture Billings Index (ABI) is an economic indicator that offers a nine- to 12-month glimpse into the spending and demand for non-residential construction activity.
