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This chart from Moody's macro model looks remarkably similar to the flowcharts I use when teach macro.
If I felt like having my daily twitter fight with economists, I could say something about how this vision of the economy in terms of direct causal links between observable aggregates is quite different from thinking in terms of equilibrium conditions of unobservable parameters.
Lance Taylor has interesting thoughts on this. He calls making models which have direct causal links between observables the "Ricardian vice." Of course he doesn't actually think it's a vice!
The fundamental question (istm) is whether we think the price & quantitites we observe are just manifestations of the true objects we are interested in & base models on, the underlying structures that produce behavior that observed outcomes measure (demand curves and so on).
Or whether we see the observed aggregates as the objects of our theory in their own right, and think of them having direct causal relationships with each other.
You could read Robert Lucas' famous 1976 article as an attack specifically on the "Ricardian vice" and on the kind of model described by this flowchart, which then as now was the standard approach in forecasting.
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