  We conduct a sensitivity analysis of a new type of integrated
climate-economic model recently proposed in the literature, where the core
economic component is based on the Goodwin-Keen dynamics instead of a
neoclassical growth model. Because these models can exhibit much richer
behaviour, including multiple equilibria, runaway trajectories and unbounded
oscillations, it is crucial to determine how sensitive they are to changes in
underlying parameters. We focus on four economic parameters (markup rate, speed
of price adjustments, coefficient of money illusion, growth rate of
productivity) and two climate parameters (size of upper ocean reservoir,
equilibrium climate sensitivity) and show how their relative effects on the
outcomes of the model can be quantified by methods that can be applied to an
arbitrary number of parameters.
