If you have narrowed your answer down to a) a passenger jet or b) a type of retirement plan, congratulations! A 457(b) is a retirement plan offered by a state or local government entity, or a non-profit organization. These plans are much less common than the familiar 401(k), but there are plenty of similarities. And some big differences too. There are even differences between a 457(b) offered by a government entity and one offered by a non-profit organization. To distinguish between the two, t