Since higher taxes reduces incentives and slow growth of GDP and lower taxes increase incentives and accelerate the growth of GDP, which of the following is the best tax policy? Raise the maximum tax rate to 75% and the government will collect about a fifth of Gross Domestic Product. Raise the maximum tax rate to 50% and the government will collect about a fifth of Gross Domestic Product. Raise the maximum tax rate to 90% and the government will collect about a fifth of Gross Domestic Product. O Lower the maximum tax rate to 20% and the government will collect about a fifth of Gross Domestic Product