The Emergence Of Free Trade And The Importance Of Comparative Advantage

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The Emergence Of Free Trade And The Importance Of Comparative Advantage
Why All Roads Lead to Rome Which leads to a higher standard of living, dependence on others or complete self-sufficiency? Before you answer the question, consider which approach better represents your life. Do you have a job and pay all your own bills, or do you live at home with your parents while they foot the bill for your upkeep? If you are on your own, you most likely consider yourself to be self-sufficient. If you are still living at home with your parents, you probably consider yourself to be somewhat dependent. The truth, however, is whether you are on your own or living at home, you are highly dependent on others for the food you eat, the clothes you wear, and the roof over your head. In order for you to get what you need and want and enjoy a higher standard of living, you must trade with others.

The History of Trade in Sixty Seconds 

For as long as there have been people, there has been trade. At first, trade was a simple matter. For example, people in a family exchanged food with their neighbors. Over time, trade expanded as people were exposed to new goods from faraway places and developed a taste for them. As tribes became kingdoms and kingdoms became empires, trade grew in importance. This growth in trade led to the emergence of the influential merchant class. These merchants braved hard-ships in search of profit, and their activities helped to form the modern world. Although the scale of trade has grown incredibly throughout history, what has not changed is that trade always occurs between individuals.


One early theory of trade was mercantilism, which dominated seventeenth- and eighteenth-century European trade policy. Mercantilism is founded on the idea that a country, and therefore, individuals, are better off if the value of a country’s exports are greater than the value of its imports. Under mercantilism, the more gold a country amassed, the wealthier it became. As a result, countries competed to import cheap natural resources and then convert them into more expensive manufactured goods for export. It is easy to see why the countries of Europe were eager to compete against each other in order to colonize and exploit the newly discovered and re- source-rich Americas.
Mercantilism had an obvious flaw. If a country is always trying to export more than it imports and everyone else is playing the same game, then someone is going to lose. In order to maintain a country’s export advantage, governments enacted many laws and taxes that distorted the flow of goods without necessarily making the people better off. In the end, mercantilism created a win-lose condition that harmed
more than it helped.


The insights of eighteenth-century Scottish thinker Adam Smith were influential in bringing an end to mercantilism. He and others at the time saw governments’ mercantilist policies as misguided and prone to influence by special interests. He argued in The Wealth of Nations that if a country specialized in what it produced best and freely traded those products, then society would be better off. Adam Smith saw wealth as being the sum total of all that the people of a nation produced. In his view, free trade led to greater wealth, even if it meant that sometimes you imported manufactured goods from people in other countries.
One argument used in support of the idea of free trade is the theory of comparative advantage. Whereas Adam Smith had argued for a country to specialize in what it does best and then trade with others, another influential thinker, David Ricardo, argued that it is better for a country to specialize in what it produces at the lowest opportunity cost, and then trade for whatever else it needs. These two concepts are referred to as absolute advantage and comparative advantage.

Absolute Advantage 

An absolute advantage exists if you can produce more of a good or service than
someone else, or if you can produce that good or service faster than someone else. An absolute advantage implies that you are more efficient, that is, able to produce more with the same amount of resources. For example, Art can write one hit song per hour, whereas Paul can write two hit songs per hour. Thus, Paul has an absolute advantage in songwriting.

Comparative Advantage 

A comparative advantage exists if you can produce a good at a lower opportunity cost than someone else. In other words, if you sacrifice less of one good or service to produce another good or service, then you have a comparative advantage. In the example given earlier, Art and Paul are songwriters, but what if both are also capable of performing complex brain surgery? If Art and Paul can both successfully complete two brain surgeries in an hour, then which has a comparative advantage in songwriting, and which has a comparative advantage in brain surgery?

To calculate the comparative advantage, you must determine the opportunity cost that each person faces when producing. In Art’s case, for every hit song he writes, he sacrifices two successful brain surgeries. In an hour, Paul can produce either two hit songs or two brain surgeries. This means that Paul sacrifices one brain surgery for every hit song he writes, and therefore, has the comparative advantage in songwriting. Art, on the other hand, has the comparative advantage in brain surgery because for every brain surgery he performs, he only sacrifices half of a hit song, compared to Paul, who sacrifices a whole hit song for the same surgery. In conclusion, Art should specialize in brain surgery and Paul in songwriting because that is where they find their comparative advantage.

Efficiency and Comparative Advantage 

It is easy to overlook comparative advantage when determining who should produce what. Just because one person might be more efficient than another does not always mean that that person should be the one doing the task. Remember to always count the opportunity cost.


The theory of comparative advantage allows you to better understand how the American economy has changed over the last sixty years. In that time period, the United States transitioned from a low-skilled, manufacturing economy to a high-skilled, diversified economy. Sixty years ago, most of your clothes would have been produced domestically, but today the tags on your clothing indicate that they were manufactured in places as diverse as Vietnam, Bangladesh, Honduras, Morocco, and of course, China.

In the same time period, a great wave of technological innovation and other cultural advances have taken place. For example, if you were to poll a group of high school freshman about their post–high school plans sixty years ago and another group today, you would likely discover that today’s students are far more likely to pursue higher education than they were in the 1940s and 1950s. In the past, dropping out of high school and working at the mill or the factory was the norm; today, dropping out of high school is cause for concern. There are more jobs as well as more job titles than there were sixty years ago. In other words, there are greater opportunities today than there were sixty years ago. Of course, this comes with one major catch: You must have the education or training in order to take advantage of the opportunity.

So what does this have to do with comparative advantage? An example might help. Consider 100 typical American high school students and then consider 100 young people of the same age in Bangladesh. In which country is the opportunity cost of producing a T-shirt higher? If you look at the American students, you would have to agree that they have more opportunities than the Bangladeshi. When Americans specialize in T-shirts, more potential doctors, nurses, teachers, engineers, mechanics, firefighters, police officers, business managers, machinists, and social workers are sacrificed than in Bangladesh, where the majority of workers will most likely become subsistence farmers. The opportunity cost of producing T-shirts is much lower in Bangladesh than in America, and therefore Bangladesh has a comparative advantage in producing T-shirts. Even though the United States has the capacity to produce T-shirts more efficiently (absolute advantage), from an economic standpoint, it makes sense to trade pharmaceuticals, refined chemicals, capital equipment, and know-how for T-shirts.

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      • Economics 101: From Consumer Behavior to Competitive Markets--Everything You Need to Know About Economics By Alfred Mill



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The Emergence Of Free Trade And The Importance Of Comparative Advantage
Here is the article on The Emergence Of Free Trade And The Importance Of Comparative Advantage, history of trade, mercantilism, free trade, COMPARATIVE ADVANTAGE AND ECONOMIC CHANGE
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