Representative res+com estimate for no-PDF (yellow) study; author preference unknowable. Value -0.085 confirmed against Dahl DEDD ref Ver73 (El-r&c/ SR -0.085); Dahl cross-check CONFIRMED.
Verleger, P. K. Jr. (1973): “An Econometric Analysis of the Relationships Between Macro Economic Activity and U.S. Energy Consumption.” In: Energy Modeling: Art, Science, Practice (ed. M.F. Searl), Resources for the Future, Inc., Washington D.C, 62-97