Representative ind estimate for no-PDF (yellow) study; author preference unknowable. Value -0.22 confirmed against Dahl DEDD ref Wal87 (El-ii_fm Metal Products LR -0.22); Dahl cross-check CONFIRMED.
Walfridson, B. (1987): “Dynamic Models of Factor Demand: An Application to Swedish Industry.” Ph.D. Thesis, Gothenburg University: School of Business, Economics and Law, Sweden