ECONOMIC THOUGHT WITHIN ITS HISTORICAL CONTEXT: A REVISION OF THE EIGHTEENTH CENTURY
Número 16 / ABRIL, 2022 (194-210) 206
Ricardo wrote:
The quantity of wine which she [Portugal]
shall give in exchange for the cloth of
England, is not determined by the respective
quantities of labour devoted to the production
of each, as it would be, if both commodities
were manufactured in England, or both in
Portugal. England may be so circumstanced,
that to produce the cloth may require the
labour of 100 men for one year. (Bernhofen
and Brown 2018:227)
On international trade, Ricardo is well known for
his theory of comparative advantages, by which
he showed that specialization in the production
and export of specic goods contributes more
to the economic development of a nation than
diversication in production. Specialization in
the manufacture of a good contributes to the
decrease in the relative cost of this product,
which makes its commercialization even more
competitive (Maneschi 1992). Ricardo admitted
that no country is absolutely more competitive
than another; however, specialization in the
production of a good will enable countries to
increase their comparative advantage.
For Ricardo, the comparative advantages are given
by the dierences in technology, the dierences
in the acquisition and commercialization of
primary goods, the dierence in demand, the
dierence in the existence of economies of scale
in production, and nally by the existence of
government policies that favor the production
of goods and services. These elements will
intervene in the decision of nations about the
products to be produced and marketed, the
impact of these decisions will inuence the
economic development of the countries.
Ricardo’s theory of comparative advantages
would be criticized decades later by various
economists and social thinkers because the
countries that export raw materials have not
succeeded in creating competitive manufacturing
companies in relation to other regions of the
world. For example, Latin America were
dedicated to the export of primary goods and
that did not achieve the impulse or advancement
of the manufacturing. In 1950, Raúl Prebisch
argued that the prices of manufactured products
would rise while the prices of primary products
would remain or fall, producing a problem in the
terms of trade.
On the other hand, about diminishing returns, as
Rogelio Huerta (2001) wrote, citing Samuelson
and Nordhaus, there are the xed cost factors
and the variable cost factors, when the latter
increases in a short time will result in a smaller
and smaller production increase because the
xed cost factors remain the same. Thus, labor
is the variable factor most used to increase
production. However, in the long term all the
factors of production can be variable including
capital such as land. In this case, production is
not limited by the law of diminishing returns,
but, on the contrary, it can increase each time at
higher rates.
The Ricardian presents a way of mitigating the
eects of diminishing returns. In the long run,
if one takes into account that all the factors
of production become variable, the problem
dissolves because returns increase as variables
such as capital and land grow with investment.
However, in the short term, Ricardo believed
that it can be solved through free international
trade (Rent 2018), which allows a country to
specialize in the production of certain goods,
while importing the goods in those that are less
productive.
Regarding income, although it was not Ricardo
who started the studies of land rent, it was the
one who tried to construct determinants and
principles of political economy to understand its
three main sources: land, labor and capital (Rent
2018). In relation to land, Ricardo’s formulation
is the one that found the greatest impact in
academia and in the practice of economics
because he carried out a deeper and more real
theoretical approach to rent. Thus, this did
not only mean the contract of payment to the
landlords, but included total productivity minus
the rental contract, less wages and capital.
The rent of the land was related to the price of
agricultural products. The price of an agricultural
product would be determined by the cost of
the least fruitful unit produced that satises
the demand, that is, it would be agreed around