[yetanotherphd]

We usually call the immediate effect (in this case on interest rates) partial equilibrium, and the "full" effect including all flow on effects, "general equilibrium". And there are models which include dynamic and random effects (dynamic stochastic general equilibrium - DSGE - models). Can't tell you much about them apart from the name :-)

Anyway it seems like messing with debt contracts is a bad way to change the interest rate, if that's all you want to do, since that is precisely the lever that the Federal Reserve controls anyway.