Robert P. Parker and Jack E. Triplett made major contributions to the
development and preparation of this article. Development of the database for
the alternative measures involved the efforts of many staff members in the
Government Division and the National Income and Wealth Division. G. Christian
Ehemann, assisted by Mary W. Hook and Jennifer M. Wu, was in charge of the
major task of directing the assembling of the database and the preparation of
the alternative measures of real GDP and GDP prices. Michael F. Mohr directed
the preparation of the indexes of manufacturing gross product shown in the
box. Shelby A. Herman contributed to the review of the database. Martin A.
Marimont provided helpful comments and suggestions. Teresa A. Price provided
secretarial assistance.