Answer to Question 1
No, a country can never have comparative advantage in all products, no matter how productive it is in general. Comparative advantage has to do with the relative price a country can produce one good or another in autarky versus the cost at which they can trade those goods with other economies. There will always be goods that are cheaper to produce in another country than at home, relative to the opportunity cost of not producing goods in which the country has comparative advantage.
Answer to Question 2
C
Comparative illustration of a leopard (left) and cheetah (right)
Eggs, milk, and cheese are complete proteins, because they are animal products.
Selected Natural Products
A close relationship between greenhouse gas emissions and a country’s gross domestic product
Steady State in the Two-Country Model
Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ...