Original sentence: This effect could somewhat reduce the incentive to violate the law in these ways and reduce the rate of certain kinds of crime, however the FairTax proposal could also create new incentives to violate the law in different ways, such as by adding a tax incentive to operate in black markets
Edited sentence: This effect could somewhat reduce the incentive to violate the law in these ways and reduce crime, however the FairTax proposal could also create new incentives to violate the law in different ways, such as the operation of black markets