“…= 2 − 1 and = √4 (1 − ) Ambiguity score and capacity variable c captures investors' ambiguity, with 0 < c < 0.5 interpreted in the CU literature as ambiguity aversion, pessimism (negative m) and under-(over-) weighting of good (bad) outcome probabilities, 0.5 < c < 1 implying ambiguity-seeking, optimism (positive m) and over-(under-) weighting of good (bad) outcome probabilities (see Chateauneuf et al, 2001;Kast and Lapied, 2010;Agliardi, 2017), and equal weight c = 0.5 (similar weighting) corresponding to the traditional ambiguity-neutral and Bayesian framework (see e.g., Kast and Lapied, 2010;Abdellaoui et al, 2011;Agliardi et al, 2016;and Driouchi et al, 2018). Score c affects the discount rate, dividend yield and volatility used in the behavioral valuation.…”