Barra was a provider of investment decision tools to investment institutions worldwide. Barra products included indices and portfolio risk and performance analytics for use in managing equity, fixed income, and
multi-asset class portfolios. The case study tells the story of Barra and how the firm provided valid risk models; databases that were extensive, accurate, and timely; and decision systems to make the models useful in realistic situations--all delivered at a price that clients could afford and (usually) in a vocabulary they could understand. The case study is mostly a summary of the firm and provides basic information regarding the firm and its history.