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
Balancing selection and heterozygote advantage.
Like most world-changing inventions, the printing press of fifteenth-century Europe took advantage o
The Railroads: Moving Agricultural Products to Eastern Markets, 1890
Major inner membrane transport systems for respiratory substrates and products
Controlling access to water in order to gain political and strategic advantage in Gaza
Data Used to Analyze Productivity in Country 1 and Country 2