Summary: US leading index up 1.3% in May; above expectations; “strong economic growth will continue”; Conference Board raises 2021 forecast again, from 6.4% to 6.6%. The Conference Board Leading Economic Index (LEI) is a composite index composed of ten sub-indices which are thought to be sensitive to changes in the US economy. The Conference Board describes it as an index which attempts to signal growth peaks and troughs; turning...