In this paper we model regimes and long memory in the dynamics of realized volatilities of intraday ETF and stock returns. We estimate threshold fractionally integrated (TARFIMA) models using Bayesian Markov Chain Monte Carlo (MCMC) algorithms with efficient jump. We also introduce a test based...

This paper empirically examines the adverse selection models by using the data from Chinas personal automobile insurance market through the standard positive-correlation test. Results show that higher-risk insurance policyholders do tend to buy insurance with a lower coinsurance rate, which...