Isolationism
"Isolationism" has always been a debated political
topic. Whether or not a country should be or should
not be isolationist affects both living standards and
the ability of political rulers to benefit favored firms
and industries.
All
the first world countries (the UK, United States, etc.)
trade in a world economy. Some will argue that removing
oneself from such an economy could be potentially helpful.
The consensus amongst most economists is that such a
policy is detrimental, and point to the mercantilism
of the pre-industrial era as the classic example. Countries
and regions generally enjoy a comparative advantage
over others in some area. Free trade between countries
allows each country to do what it does best, and benefit
from the products and services that others do best.
Protectionism prevents this process, it is argued, making
people poorer than they would be otherwise.
On
the other hand, non-interventionism generally benefits
a country by reducing both military spending (as it
is limited to defensive purposes) and the chances of
provoking an attack (by not meddling in foreign intrigue.)