 There are variations on this example that have a more positive yield for the players. For example, Earman and Norton (1996) propose the following pyramid marketing scheme. Suppose that an agent sells two shares of a business for $1,000 each to a pair of agents. Each agent splits their share in two and sells it for $2,000 to two more agents, thus netting $1,000 while four new agents go into debt for $1,000 each. Each of the four new agents then do the same, and so on ad infinitum. How does this game end?