6 The first scenario, called the “good” one, assumes that everyone does what is necessary to fulfill the G-20 commitments made in 2009 and at the three subsequent leaders’ summits. This scenario was not intended to be as good as it gets – a Goldilocks solution – but simply good enough to get the job done.
The second, or “bad” scenario, assumes that most of what was promised is eventually accomplished, but with a three-year delay. The third scenario, called the “ugly” one, is a variant of the first two and assumes that only half the job is done, at least initially.