Many thanks Artur,
However, I was puzzled mostly by the different behavior of different
versions, in a case that seems to me they should behave in the same
manner. In any case, I have another question: if one modifies the model
so that there is no dynamic behavior, the --static option still gives
one period forecast, though it is not strictly necessary. It is
documented behavior, but is what one would expect? Your modified example
is attached (test_fcast2.inp).
Concerning the original example, in test_fcast3.inp (attached), I have
increased the out of sample forecast period to 10 periods. In 2019a
version the script works, in 2019c not (now on Win 10 both, though I
think the OS is irrelevant). I am assuming that all forecasts are
constructed in the correct way, i.e. using the last period forecast as
the lag of the endogenous variable from the second forecast period
onward. What created the difference?
Many thanks again,
Andreas