The 1st question is 1) Suppose that the privatization of the social security system raises the savings rate (and, hopefully, the investment rate) in...

The 1st question is

1) Suppose that the privatization of the social security system raises the savings rate (and, hopefully, the investment rate) in the U.S. Explain the impact on per capita income growth in the US. Will long run growth be affected? 

(Here, I am just looking for the impact of a rise in the investment rate on growth in the economy)

2nd is below