Shulman also describes how nonincremental policy can be used in social areas to make it more self supporting. This means that policies can be enforced to work in a cycle to help the problem help itself. For example, with the new welfare reform, forcing recipients to get a job in 2 years will also help with the unemployment rate. It may encourage the recipients to use birth control and help decrease the number of children on welfare. I'm certainly not saying that this is what will happen, but this is the basic idea of trying to make something more self supporting and shows how it works in a cycle process.
Nonincremental policy is more unstable and risky.
This is because it is not done in small, safe baby steps but rather attacking the situation full on. Wilson discusses this idea all throughout his book.