I see there should be an options to choose. Anyway I've found what you mean. The best answer sounds like that: <span>Globalization encourages companies to seek lower wage. Globalization encourages companies to operate in other countries were wages for labor can be lower.</span>
It depends on the latitude where you measure it.
It's about 69 miles on the equator, and it shrinks to zero at the poles.
In general, at any latitude,
Distance covered by 1 degree of longitude =
<em> (69 miles) x [ cosine(latitude where it's measured) ]</em>
