BE356Matlab_Ex04_Ex05_Ex06\Data_EquityIdx.mat ..........................\Data_JAustralian.mat ..........................\Data_USEconModel.mat ..........................\data02.xlsx ..........................\Ex04a_JB_unitroot.m ..........................\Ex04b_BJ_arima.m ..........................\Ex05a_aicbic_univ.m ..........................\Ex05b2_garch.m ..........................\Ex06a_VAR.m