Why is it important for policymakers (central bankers, the treasury department, the finance ministry etc.) to be able to solve complex dsge/rbc models as quickly and as efficiently as possible?
I am a graduate student studying this stuff in detail for the first time. In general, I don't see the value of solving these heterogeneous agent models. This is mostly because I approach these issues differently than "mainstream" economists.
I am just trying to understand why being able to "solve" models is useful.