verbal description = Proto CD Standard data Increase tw from 0 to 0.1 ; method = gragg ; steps = 2; model = protocd ; version = 1; identifier = PROTO CD ; equations file = protocd ; solution file = ex4g ; display file = protocd.dis ; auxiliary file = protocd ; exogenous p_h p_tc p_ptx p_ptw p_p; rest endogenous; shock p_ptw = -10 ;