When a comparative advantage exists, what should the producer with the comparative advantage do?

There are three producers. Producer A spends $10 to make a widget. Producer B spends $50 to make a widget. Producer C spends $4. Who has the absolute advantage?

Mechanic A can change a tire in 1 hour and change a sparkplug in 2 hours. Mechanic B can change a tire in 0.5 hours and change a sparkplug in 0.25 hours. Who has the comparative advantage in changing sparkplugs?

Rancher Tom can raise 10 goats and 20 pigs in a year. Rancher Joe can raise 20 goats and 100 pigs in a year. Who has the comparative advantage for raising pigs?

When one producer has a lower opportunity cost of production than another producer for a given item, what exists?

Farmer John has a pistachio farm. It takes him 5 hours worth of work to harvest 1 pound of nuts. Farmer Rick also has a pistachio farm. It takes him 10 hours worth of work to harvest 1 pound of nuts. Finally, Farmer Erica owns a third pistachio farm. She can harvest 1 pound of nuts in 2 hours. Who has the absolute advantage in this example?

When one producer can create a given amount of output with fewer inputs, what exists?

Which of the following is a situation in which trade is advantageous?

Why should countries trade?