please make a revision with the super high quality. ---- at least two pages more

I have two issues with your empirical analysis, however.  Your model tells you that human capital, physical capital and labor all play a role in determining the steady state level of growth. In your empirical approach however, you use foreign aid as if it were the investment rate.  So my questions are: (1) How do you know that foreign aid is investment rather than directi consumption (like providing food for people)?  (2) What about domestic investment?  Foreign aid will only be a portion of investment for most countries.