<span>In making a good business decision; the marginal benefit is the extra profit you make from producing more goods, while marginal cost is the expense of producing them.</span>
Explanation:
Due to the timeline almost
From the point of vies of this place (i.e. for the people who stayed in the place) this is called emigration: when people leave the country, it's called a mass emigration.
From the point of view of the place where this person settles down, this is called immigration and this person is an immigrant
