Second order approximation Schmitt-Grohe, Uribe (2004)

Hi! I would like to use the second-order approximation to solve the model and then evaluate welfare using this solution as in Schmitt-Grohe and Uribe (2004). Are there Dynare codes available that replicate results of this paper? I found this page - , however, both mod-files there don’t function.
I’ve never done welfare evaluation in Dynare and now not sure how I should proceed…

Please be more precise. Which Schmitt-Grohé/Uribe (2004)-paper are you talking about? They have been immensely productive and it’s impossible to identify papers just by the year.

I was referring to the paper “Optimal Simple and Implementable Monetary and Fiscal rules” … panded.pdf

I want to calculate conditional welfare measure - conditional on the initial state being the non stochasic steady state. How could I do this in Dynare in the same way as it is done in the paper I attached, for example.
Should I then, first, do second order approximation and calculate conditional welfare as welfare = utility + beta*welfare(+1)?
If my model is in log-deviations from steadystate, then I would calculate welfare deviations from steady state?

My goal is to compare conditional welfare under different policy rules. Could you please give me some advice on this issue?
welfare calculation.pdf (257 KB)

This paper is on my replication list, but still months away. For now, I can only refer you to [Welfare cost of business cycles)