list(alpha0 = 0, alpha1 = 0, alpha2 = 0, alpha12 = 0, sigma = 1,beta = c(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0))