“…and similar measures of implied market tail risk (e.g., Bollerslev et al 2015), as well as from model-free proxies of implied market volatility, such as V IX m,t . Therefore, we expect an imperfect empirical comovement of T RM t,h , T RM m,t,h , and V IX m,t , e.g., in presence of stochastic return correlations or a time-varying conditional return nonnormality.…”