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141 Annals Am. Acad. Pol. & Soc. Sci. 1 (1929)

handle is hein.cow/anamacp0141 and id is 1 raw text is: The Basis of International Trade

By HARRY T. COLLINGS
Professor of Commerce, Wharton School of Finance and Commerce, University of Pennsylvania

I NTERNATIONAL trade is based on
the territorial division of labor. In
this respect it differs not at all from
domestic trade. International trade
arises because a country specializes in
the production of certain goods and
services and thus produces more than
enough to supply the domestic demand.
Obviously it must export the surplus
to continue the specialization. To
receive a return for its exports, a coun-
try must ultimately import either goods
or services. Imports pay for exports
-both of which may consist of services
as well as of goods. Services, the so-
called invisible items of interna-
tional trade, have occasioned confusion
in the minds of many because until
recently only the commodities actually
exchanged have appeared on the na-
tional trade balances. While the bases
of foreign and domestic commerce are
thus the same, international trade is far
more complicated because of new fac-
tors which enter into the transactions.
False theories, nationalism, differences
in language and customs, so complicate
exchange of goods between nations as
to make impossible a comparison with
domestic trade.
In no field of economics have more
misleading theories prevailed than in
international trade. The doctrine of
caveat emptor long prevailed in domestic
trade; it still persists in foreign com-
merce. Men for years insisted that
what a buyer gained by purchase, the
seller must necessarily lose. The argu-
ment appealed to reason as a most
logical deduction under the law of
compensation. It later became evi-
dent that values might not be the same
for any one good to two different peo-

ple-in other words, that the marginal
utility of a commodity differed for
different people according to their
need at the particular time, or to their
supply relative to this demand. Both
seller and buyer may, and usually do,
actually gain from a trade because of
the differing utility of the purchase to
each of them. But national bounda-
ries seem to vitiate this argument of
gain to both parties. It seems untrue
when one party is a foreigner.
MERCANTILISM
The persistence of erroneous thinking
in foreign trade matters is partially
attributable to theories of exchange
current centuries ago. Mercantilism,
which took root early in economic
thinking, dominated this field subse-
quent to the seventeenth century.
This theory had many phases since it
related to the entire business activity
of a nation. In reference to interna-
tional trade its tenets may be stated
in simplified form somewhat as follows:
The infallible index of national pros-
perity  was an   increasing national
supply of the precious metals. The
more gold and silver a country pos-
sessed, the richer, the more powerful
and consequently the more progressive
it was. This overestimation of the
economic significance of money was the
salient error of mercantilism. It led
to the promulgation of certain tenets
which have dominated, and still dom-
inate to some extent the thinking of
the man in the street regarding
exports and imports.
In harmony with the view that
money is the index of prosperity, mer-
cantilism held that it must be the

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