摘要：Recent contributions show that climate agreements with broad
participation can be implemented as weakly renegotiation-proof
equilibria in simple models of greenhouse gas abatement where
each country has a binary choice between cooperating (i.e., abate
emissions) or defecting (no abatement). Here we show that this
result carries over to a model where countries have a continuum
of emission choices. Indeed, a Pareto-efficient climate agreement
can always be implemented as a weakly renegotiation-proof equilibrium,
for a sufficiently high discount factor. This means that
one need not trade-off a “narrow but deep” treaty with a “broad
but shallow” treaty.
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