Accord to these authors, PDAs have different motives from existing statist defense agencies: they believe that their survival depends on quality of service leading to a wide customer base, rather than "the ability to extract funds via the force of law", and that customers and markets would thus dictate that PDAs minimize offensive tendencies and militarization in favor of a pure defense. Anarcho-capitalists believe such privatization and decentralization of defense would eliminate the credibility of, and popular support for, the state.