The reforms had mixed results. In some areas—such as Cuba, Río de la Plata and New Spain—the reforms had positive effects, improving the local economy and the efficiency of the government. In other areas, the changes in the crown's economic and administrative policies led to tensions with locals, which at times erupted into open revolts, such as the Revolt of the Comuneros in New Granada and the Rebellion of Túpac Amaru II in Peru.