How would you expect each of the following events toaffect the US economy? Analyze in terms of macroeconomic analysis and how this would affect one of the four components of the expenditures approach to GPD.

a) A new wave of Arab Spring has broken out in Saudi Arabia, threatening the rule of the current Saudi political leaders.

b) Housing prices across America are rising to their highest historical levels.

c) Years of continued growth in the Chinese economy come to an abrupt end and their economy "pops".

d) Russia discovers vast new oil reserves in the middle of their country rivaling the oil of Saudi Arabia.