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机译:Do High-Frequency Volatility Methods Improve the Accuracies of Risk Forecasts? Evidence from Stock Indexes and Portfolio
Xihua Univ, Sch Social Dev, Chengdu, Peoples R China;
Southeast Univ, Sch Econ & Management, Nanjing, Peoples R China;
Yunnan Univ Finance & Econ, Sch Finance, Kunming, Yunnan, Peoples R ChinaPanzhihua Univ, Sch Econ & Management, Panzhihua, Peoples R China;
Risk forecasting; portfolio; realized volatility; high-frequency data; GARCH-type model;