But South Korea is unlikely to want to apply any sort of real squeeze on North Korea over the nuclear issue until more negotiation has been tried first.
However, the scenarios included multiple rounds of negotiation, so there was room for give-and-take: in a third experiment, with negotiation focused on a single issue, mimicry failed to have its desired effect.
Mr Gray went on to say Scotland's public sector pay needed to be tackled - but stressed the issue must be taken forward with proper negotiation, such as what workers would get in return.