Final answer:
Governmental policies play a crucial role in the revitalization of cities, as seen in initiatives like urban renewal. While private sector initiatives also contribute, governmental policies help regulate land use and promote sustainable development.
Step-by-step explanation:
Governmental policies play a crucial role in the revitalization of cities. Urban renewal is one such policy implemented by the US government to reinvigorate the urban cores of large cities. Under this initiative, the government provided funds for cities to purchase degraded land, build public housing projects, and incentivize investors to rebuild the vacated areas.
While private sector initiatives and individual investors may contribute to urban revitalization, governmental policies are essential in addressing the problems of markets and promoting sustainable development. These policies help regulate land use, balance economic interests, and ensure that revitalization efforts benefit the larger community.