Identify the goods, services, or tasks to compare
Determine the opportunity cost of producing each one
Calculate how much of one good must be given up to produce more of another
Compare opportunity costs across producers, countries, or workers
Find the producer with the lower opportunity cost for each good
Assign each producer to the good they can produce at the lowest opportunity cost
Specialize in the good with the comparative advantage
Trade for the other good if beneficial
Reevaluate comparative advantage when costs, technology, or resources change
