Rachel Jackson of Princeton has written this case study. Here is the abstract:
ABSTRACT: In the late 1990s, civil society reformer Harry Pozycki began a grassroots campaign to eliminate pay to play, a form of influence buying whereby businesses donated money to New Jersey political parties and candidates in exchange for favorable consideration in the awarding of government contracts. Pay to play had plagued state politics for decades and raised the cost of public services. Pozycki pushed for enactment of contracting regulations at the state and local levels that would bar companies making campaign contributions from being awarded New Jersey government contracts. Although civic groups did make steady progress in winning public support for reform, the state legislature failed to pass regulations because both political parties relied heavily on donations from contractors to fund their electoral campaigns. But in 2004, outgoing Governor James E. McGreevey implemented the regulations by executive order, and his successor, Richard J. Codey, carried forward that momentum, thereby enacting a state law that made the regulations permanent. The state and local pay-to-play reforms ultimately required very little administrative cost and avoided legal complications related to free speech by their regulation of state contracts rather than of campaign financing. By 2006, New Jersey had one of the strongest anti-pay-to-play laws in the United States, and several other states followed its model. Under two successive governors, New Jersey continued to consider the legislation and make changes to it through the end of 2012.