Maintaining the Competitive Environment in the Retail Payments Market On the other hand, leaving the competition up to the market may not lead to desirable outcomes in the long term; it could possibly result in "market failure." The payment and  6  settlement systems have "network externalities" where the wider a network is, the more benefit the participants in the network can enjoy.
So the prophetess burned three more books, again offering the remaining three books for the original price. This time, Tarquinius accepted the terms, and the books found their way into the Temple of Jupiter. The books got lost in more recent times. But the questions remain: What advice did the books would have had for modern policymakers?