Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 石田 功 and Isao ISHIDA,Forecasting Daily Spot Volatility Paths of the Nikkei 225 Spot Volatility via the Functional ARCH Model,甲南経済学論集 = Konan economic papers,0452-4187,甲南大学経済学会,2019-03-30,59,3・4,69-78,https://cir.nii.ac.jp/crid/1390009224773527168,https://doi.org/10.14990/00003269