Analysis of the $2007-2009$ U$.$S financial Crisis. Use a GRAPH to show the effects on inflation and output in the short run and in the long run.

$($A$)$ Oil Shock: the oil price was $60$$ per barrel at the beginning of $2007,$ and increased to $140$$ n July $2008.$

$($B$)$ The financial crisis was starting in $2007,$ and one of the biggest investment, Lehman Brother, bankrupted in the fall $2008.$

$($C$)$ The financial crisis brings collapse of Chinese exports starting in $2008.$