I have two stupid (most likely) questions.
I want to analyze simultaneously two exogenous shocks in a model (eg. two different productivity shocks) but I get two separate Impulse response functions corresponding to each shock respectively. How can I have a joint IRF as the result of the two exogenous shocks in the model?
I want to give an exogenous positive shock to the model but it should, at the same time, give a negative shock to another exogenous variable. The later shock is in a proportion to the first shock. In other words, a shock should also generates another exogenous shock in the model.