Representative res estimate for no-PDF (yellow) study; author preference unknowable. Value -0.5273 confirmed against Dahl DEDD ref Atk79a (El-r_mpk 9a_2p,7p_10p SR -0.5273); Dahl cross-check CONFIRMED.
Atkinson, S. F. (1979a): “A Comparative Analysis of Consumer Response to Time-of-Use Electricity Pricing: Arizona and Wisconsin.” EPRI Report EA-1304, Electric Power Research Institute, Palo Alto, California