In this paper, we develop a monthly output index for the U.S. transportation sector from January 1980 through April … also constructed. Our total transportation output index matches very well with the annual transportation output figures … output appear to be more synchronized with the growth slowdowns in the U.S. economy than full-fledged recessions. Our index …

We develop a monthly output index of the U.S. Transportation sector over 1980:1-2002:4 covering air, rail, water, truck … output index matches very well with the annual transportation output figures produced by the Bureau of Labor Statistics (BLS … synchronized with the growth slowdowns rather than full-fledged recessions of the U.S. economy. The index has led the peaks and …