When the us government proposed a fiscal stimulus package during a recession there is usually a debate in Congress as to whether the government should:

1. Increaas spending directly such as building bridges and schools or

2.reduce personal income taxes

using the concept of u.s gdp accounting based on the expenditure approach:

a. Explain why each of the 2 optima would have a different initial impact on U.S GDP

b. How could the positive expenditure impact on U.S GDP from the actual spending stimulated by the fiscal package be diminished?