求教:哪位能帮忙解释一下
1.单位根检验中included in test equation 如何选取?
2.单位根检验中lagged differeces如何确定啊?看到书上说要使AIC和SC值最小,难度要一个个试验吗?
谢谢!
请注明:姓名-公司-职位
以便审核进群资格,未注明则拒绝
1 in the test equation, u may choose any variables u like in it
2 yes, you should test it one by one , then according the rules u choose the lagged diffrernce