Rational choice is an approach to International Relations that holds that international relations involve rational actors. For the un- bounded rationality approach, this means that actors attempt to achieve their preferred outcome, choose the best of all possible op- tions, and believe that others think the same way. For the bounded rationality approach, actors are regarded as seeking their preferred outcomes but make the best choice that they can under constraints such as limited information and thus accept that they may not be fully aware of how and why choices are being made by others.