 1958 to 1967, Moore, working with Julius Shiskin, developed the original composite index method, and the composite indexes of leading, coincident, and lagging indicators of the U.S. economy.1968, Moore gave over to the U.S. government the original composite leading, coincident and lagging indexes, which the Commerce Department adopted (and published regularly in Business Cycle Developments (BCD), soon renamed Business Conditions Digest), with the Index of Leading Economic Indicators (LEI) becoming its main forecasting gauge.1969, Moore was appointed U.S. Commissioner of Labor Statistics, and took a four-year leave from the NBER.