Recession - why/how/man-made question?

a). What caused the current recession? b). If the recession is man-made, it should not be difficult to fix. But apparently not. Why? c). How can a US specific 'home-loan mortgage crisis' cause recession in other countries? d). What 'exactly' caused/causes recession? How can it be fixed so that... show more a). What caused the current recession?
b). If the recession is man-made, it should not be difficult to fix. But apparently not. Why?
c). How can a US specific 'home-loan mortgage crisis' cause recession in other countries?
d). What 'exactly' caused/causes recession? How can it be fixed so that there is no recession in future? How will recession be fixed.
e). Is it in the nature of capitalism that recession will happen (just like growth will happen too).

Somebody explain please.
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