why we use absorption costing rather than variable costing?

if absorbing costung method will allow for over producing then why does CAAP allow this methid?

kindly please write at least longer than 3 paragraphs explaning everything carefully.

please only do this if you can write longer than 3 paragraphs and explain it well. thank you !

please kindly also explain why absorption is GAAP and variable is not, and the advantages and disadventages of the two .

i spelled GAAP as CAAP pleas dont get confused by it!