 The basic idea behind the Dutch Book argument for probabilism has been used in defense of a variety of principles that purport to govern how beliefs should evolve over time. In each case, it is argued that the agent who violates the principle is subject to a Dutch Book. Here, the bets involved are placed at different times, but there is an algorithm for placing the bets that is available at the outset guaranteeing a profit to one side. Such arguments are generally referred to as “Dutch Strategy” arguments.