prediction after VEC model in stata

[Fancy Chen]

Dear,
I have run a vec model and make predictions using the following code:
vec dv price unemp , trend(constant)
predict dv_hat, xb

But the stata returns the estimation of the fitted difference of dv rather than fitted dv.

Can someone help me? How can I get the predicted value for dv after the vec modelling.

thank you very much.

[Eric de Souza]

add the option levels:
predict dv_hat, xb levels