Comparative advantage I would think. Yep, Google-sensei confirmed it:) Comparative advantage is the answer.
A men were enslaved, so polygamy became more common in Africa society
<span>The
regulation of highway speed limit by the government is intended to minimize the
increased levels of highway accidents. This
regulation aims to minimize gas consumption by up to 10%. It is also intended
to help reduce greenhouse gas emissions by a percentage of up to 7%.</span>
