Definition of 'Comparative Advantage'. Definition: The benefit or advantage of an economy to be able to produce a commodity at a lesser opportunity cost than other entities is referred to as comparative advantage in international trade theory.
exists and is an alternate of . The current (Aug 2014) price of postage for a standard first-class letter is 49 cents. Check out the website of the United States Postal Service for a full rundown, including additional-ounce costs (see Related Links). Sharon Sparrow.
@anon39270, the stamps only hold the value that you originally purchased them for. i.e. The current price for a forever stamp is .44 cents (2010) so 20 years from now the value of that same stamp will still be .44 cents, even if the price for one ounce is $2 then. So, you would need five forever stamps from this year for 1 ounce in 20 years.