Theories of Intl Trade
Theories of Intl Trade
Theories of Intl Trade
Trade is crucial for the very survival of countries that have limited resources, such as
Singapore or Hong Kong (presently a province of China), or countries that have skewed
resources, such as those located in the Caribbean and West Asian regions. However, for
countries with diversified resources, such as India, the US, China, and the UK, engagement in
trade necessitates a logical basis.
The trade patterns of a country are not a static phenomenon; rather these are dynamic in
nature. Moreover, the product profile and trade partners of a country do change over a period
of time. Till recently, the Belgian city of Antwerp, the undisputed leader in diamond
polishing and trade, had witnessed a shift of diamond business to India and other Asian
countries, as given in Exhibit 2.1.
It is also imperative for international business managers to find answers to some basic issues,
such as why do nations trade with each other?
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Theories of international trade provide the raison d’etre for most of these queries.
Trade theories also offer an insight, both descriptive and prescriptive, into the potential
product portfolio and trade patterns. They also facilitate in understanding the basic reasons
behind the evolution of a country as a supply base or market for specific products.
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The principles of the regulatory frameworks of national governments and international
organizations are also influenced to a varying extent by these basic economic theories.
The theory of mercantilism attributes and measures the wealth of a nation by the size of its
accumulated treasures. Accumulated wealth is traditionally measured in terms of gold, as
earlier gold and silver were considered the currency of international trade. Nations should
accumulate financial wealth in the form of gold by encouraging exports and discouraging
imports.
The theory of mercantilism aims at creating trade surplus, which in turn contributes to the
accumulation of a nation’s wealth. Between the sixteenth and nineteenth centuries, European
colonial powers actively pursued international trade to increase their treasury of goods, which
were in turn invested to build a powerful army and infrastructure.
The colonial powers primarily engaged in international trade for the benefit of their
respective mother countries, which treated their colonies as exploitable resources. The first
ship of the East India Company arrived at the port of Surat in 1608 to carry out trade with
India and take advantage of its rich resources of spices, cotton, finest muslin cloth, etc.
Other European nations—such as Germany, France, Portugal, Spain, Italy—and the East
Asian nation of Japan also actively set up colonies to exploit the natural and human
resources.
The colonies served as cheap sources for primary commodities, such as raw cotton, grains,
spices, herbs and medicinal plants, tea, coffee, and fruits, both for consumption and also as
raw material for industries. Thus, the policy of mercantilism greatly assisted and benefited
the colonial powers in accumulating wealth.
The limitations of the theory of mercantilism are as follows:
i. Under this theory, accumulation of wealth takes place at the cost of another trading partner.
Therefore, international trade is treated as a win-lose game resulting virtually in no
contribution to the global wealth. Thus, international trade becomes a zero-sum game.
ii. A favourable balance of trade is possible only in the short run and would automatically be
eliminated in the long run, according to David Hume’s Price-Specie- Flow doctrine. An
influx of gold by way of more exports than imports by a country raises the domestic prices,
leading to increase in export prices.
In turn, the county would lose its competitive edge in terms of price. On the other hand, the
loss of gold by the importing countries would lead to a decrease in their domestic price
levels, which would boost their exports.
iii. Presently, gold represents only a minor proportion of national foreign exchange reserves.
Governments use these reserves to intervene in foreign exchange markets and to influence
exchange rates.
iv. The mercantilist theory overlooks other factors in a country’s wealth, such as its natural
resources, manpower and its skill levels, capital, etc.
v. If all countries follow restrictive policies that promote exports and restrict imports and
create several trade barriers in the process, it would ultimately result in a highly restrictive
environment for international trade.
vi. Mercantilist policies were used by colonial powers as a means of exploitation, whereby
they charged higher prices from their colonial markets for their finished industrial goods and
bought raw materials at much lower costs from their colonies. Colonial powers restricted
developmental activities in their colonies to a minimum infrastructure base that would
support international trade for their own interests. Thus, the colonies remained poor.
A number of national governments still seem to cling to the mercantilist theory, and exports
rather than imports are actively promoted. This also explains the raison d’etre behind the
‘import substitution strategy’ adopted by a large number of countries prior to economic
liberalization.
This strategy was guided by their keenness to contain imports and promote domestic
production even at the cost of efficiency and higher production costs. It has resulted in the
creation of a large number of export promotion organizations that look after the promotion of
exports from the country. However, import promotion agencies are not common in most
nations.
Presently, the terminology used under this trade theory is neo-mercantilism, which aims at
creating favourable trade balance and has been employed by a number of countries to create
trade surplus. Japan is a fine example of a country that tried to equate political power with
economic power and economic power with trade surplus.
Smith emphasized productivity and advocated free trade as a means of increasing global
efficiency. As per his formulation, a country’s standards of living can be enhanced by
international trade with other countries either by importing goods not produced by it or by
producing large quantities of goods through specialization and exporting the surplus.
An absolute advantage refers to the ability of a country to produce a good more efficiently
and cost-effectively than any other country.
What is prudence in the conduct of every private family can scarce be folly in that of great
kingdom. If a foreign country can supply us with a commodity cheaper than we ourselves can
make it, better buy it of them with some part of the produce of our own industry. Thus,
instead of producing all products, each country should specialize in producing those goods
that it can produce more efficiently.
ii. Switching production from one produce to another to save labour time.
iii. Long product runs to provide incentives to develop more effective work methods over a
period of time.
Therefore, a country should use increased production to export and acquire more goods by
way of imports, which would in turn improve the living standards of its people. A country’s
advantage may be either natural or acquired.
Natural:
Natural factors, such as a country’s geographical and agro-climatic conditions, mineral or
other natural resources, or specialized manpower contribute to a country’s natural advantage
in certain products. For instance, the agro-climatic condition in India is an important factor
for sizeable export of agro-produce, such as spices, cotton, tea, and mangoes.
The availability of relatively cheap labour contributes to India’s edge in export of labour-
intensive products. The production of wheat and maize in the US, petroleum in Saudi Arabia,
citrus fruits in Israel, lumber in Canada, and aluminium ore in Jamaica are all illustrations of
natural advantages.
Acquired Advantage:
Today, international trade is shifting from traditional agro-products to industrial products and
services, especially in developing countries like India. The acquired advantage in either a
product or its process technology plays an important role in creating such a shift.
To illustrate the concept of absolute advantage, an example of two countries may be taken,
such as the UK and India. Let us assume that both the countries have the same amount of
resources, say 100 units, such as land, labour, capital, etc., which can be employed either to
produce tea or rice.
However, the production efficiency is assumed to vary between the countries because to
produce a tonne of tea, UK requires 10 units of resources whereas India requires only 5 units
of resources. On the other hand, for producing one tonne of rice, UK requires only 4 units of
resources whereas India needs 10 units of resources (Table 2.1).
Since India requires lower resources compared to UK for producing tea, it is relatively more
efficient in tea production. On the other hand, since UK requires fewer resources compared to
India for producing rice, it is relatively more efficient in producing rice.
Although each country is assumed to possess equal resources, the production possibilities for
each country would vary, depending upon their production efficiency and utilization of
available resources.
All of the possible combinations of the two products that can be produced with a country’s
limited resources may be graphically depicted by a production possibilities curve (Fig. 2.1),
assuming total resource availability of 100 units with each country.
The slope of the curve reflects the ‘trade-off of producing one product over the other,
representing opportunity cost. The value of a factor of production forgone for its alternate use
is termed as opportunity cost.
For instance, if the UK wishes to produce one tonne of tea, it has to forgo the production of
2.5 tonnes of rice. Whereas in order to produce one unit of rice, it has to relinquish the
production of only 0.40 tonne of tea.
Suppose no foreign trade takes place between the two countries and each employs its
resources equally (i.e., 50:50) for production of tea and rice. The UK would produce 5 tonnes
of tea and 12.5 tonnes of rice at point B whereas India would produce 10 tonnes of tea and 5
tonnes of rice at point A as shovra in Fig. 2.1.
This would result in a total output of 15 tonnes of tea and 17.5 tonnes of rice (Table 2.2). If
both India and the UK employ their resources on production of only tea and rice,
respectively, in which each of them has absolute advantage, the total output, as depicted in
Fig. 2.1, of tea would increase from 15 tonnes to 20 tonnes (point C) whereas rice would
increase from 17.5 tonnes to 25 tonnes (point D).
Thus, both countries can mutually gain from trading, as the total output is enhanced (Table
2.2) as a result of specialization.
The theory of absolute advantage is based on Adam Smith’s doctrine of laissez faire that
means ‘let make freely’. When specifically applied to international trade, it refers to ‘freedom
of enterprise’ and ‘freedom of commerce’.
Therefore, the government should not intervene in the economic life of a nation or in its trade
relations among nations, in the form of tariffs or other trade restrictions, which would be
counterproductive.
A market would reach to an efficient end by itself without any government intervention.
Unlike as suggested by the mercantilist theory, trading is not a zero-sum game under the
theory of absolute advantage, wherein a nation can gain only if a trading partner loses.
Instead, the countries involved in free trade would mutually benefit as a result of efficient
allocation of their resources.
Comparative advantage may be defined as the inability of a nation to produce a good more
efficiently than other nations, but its ability to produce that good more efficiently compared
to the other good.
Thus, the country may be at an absolute disadvantage with respect to both the commodities
but the absolute disadvantage is lower in one commodity than another.
Therefore, a country should specialize in the production and export of a commodity in which
the absolute disadvantage is less than that of another commodity or in other words, the
country has got a comparative advantage in terms of more production efficiency.
To illustrate the concept, let us assume a situation where the UK requires 10 units of
resources for producing one tonne of tea and 5 units for one tonne of rice whereas India
requires 5 units of resources for producing one tonne of tea and 4 units for one tonne of rice
(Table 2.3). In this case, India is more efficient in producing both tea and rice. Thus, India
has absolute advantage in the production of both the products.
Although the UK does not have an absolute advantage in any of these commodities it has
comparative advantage in the production of rice as it can produce rice more efficiently.
Countries also gain from trade by employing their resources for the production of goods in
which they are relatively more efficient.
Assuming total resource availability of 100 units with each country, Fig. 2.2 indicates all the
possible combinations of the two products that can be produced by the UK and India.
In case there is no foreign trade between India and the UK (Table 2.4) and both the countries
are assumed to use equal (50:50) resources for production of each commodity, UK would
produce 5 tonnes of tea and 10 tonnes of rice as shown at point A, whereas India would
produce 10 tonnes of tea and 12.5 tonnes of rice at point B in Fig. 2.2.
If the UK employs all its resources in the production of rice in which it is more efficient than
the other, India can produce the same quantum of tea, i.e., 15 tonnes (Point C) by employing
only 75 units of its resources. It can utilize the remaining 25 units of its additional resources
for producing 6.25 units of rice, which would raise the total rice production from 22.5 tonnes
without trade to 26.25 tonnes after trade (Table 2.4).
Alternatively, the UK can employ its entire resources (i.e., 100 units) to produce 20 tonnes of
rice and India can use only 10 units of its resources to produce 2.5 tonnes of rice so as to
produce the same quantity of rice, i.e., 22.5 tonnes.
The remaining 90 units of resources may be used by India for the production of tea, resulting
in an increase in tea production from 15 tonnes without trade to 18 tonnes with trade as
shown at Point E. Hence, it is obvious from the illustrations that countries gain from trade
even if a country does not have an absolute advantage in any of its products as the total world
output increases.
RCA is defined as a country’s share of world exports of a commodity divided by its share in
total exports. The index for commodity j from country i is computed as
RCAij = (Xij/Xwj)/(Xi/Xw)
Where,
On the other hand, India has an RCA in resource-based and low-technological industries,
such as fresh food, leather products, minerals, textiles, basic manufacture, chemicals, and
clothing.
It is also observed that the US, Japan, and the UK have an RCA in high- and medium-
technology categories, such as IT, consumer electronics, electronics, manufacturing, etc.,
whereas China’s main competitors such as Mexico, Hong Kong, and Thailand have RCA in
low-, medium-, and high-technology categories.
This implies that countries specializing in medium- to high-technology products may explore
opportunities of expanding bilateral trade with India and those in resource-based industries
may stand to benefit substantially by an increase in demand of such products in China.
For example, Latin American countries mainly produce and export various commodities. The
major producer of Latin America is copper, oil, soy, and coffee, as the region produces about
47 per cent of the world soybean crop, 40 per cent of copper, and 9.3 per cent of oil.
The rising demand for commodities in China and other countries presents opportunities to
these countries for expanding their production and increasing foreign exchange revenues.
Similarly, the rapid growth in economic activities in India and China opens up opportunity
for oil exporting countries. Thus, revealed comparative advantage may be employed as a
useful tool to explain international trade patterns.
ii. Specialization in one commodity or product may not necessarily result in efficiency gains.
The production and export of more than one product often have a synergistic effect on
developing the overall efficiency levels.
iii. These theories assume that production takes place under full employment conditions and
labour is the only resource used in the production process, which is not a valid assumption.
iv. The division of gains is often unequal among the trading partners, which may alienate the
partner perceiving or getting lower gains, who may forgo absolute gains to prevent relative
losses.
v. The original theories have been proposed on the basis of two countries-two commodities
situation. However, the same logic applies even when the theories experimented with
multiple-commodities and multiple-countries situations.
vi. The logistics cost is overlooked in these theories, which may defy the proposed advantage
of international trading.
vi. The sizes of economy and production runs are not taken into consideration.
According to this theory, a nation will export the commodity whose production requires
intensive use of the nation’s relatively abundant and cheap factors and import the commodity
whose production requires intensive use of the nation’s scarce and expensive factors.
Thus, a country with an abundance of cheap labour would export labour-intensive products
and import capital-intensive goods and vice versa. It suggests that the patterns of trade are
determined by factor endowment rather than productivity.
The theory suggests three types of relationships, which are discussed here:
(i) Land-Labour Relationship:
A country would specialize in production of labour intensive goods if the labour is in
abundance (i.e., relatively cheaper) as compared to the cost of land (i.e., relatively costly).
This is mainly due to the ability of a labour-abundant country to produce something more
cost-efficiently as compared to a country where labour is scarcely available and therefore
expensive.
Wassily Leontief carried out an empirical test of the Heckscher-Ohlin Model in 1951 to find
out whether or not the US, which has abundant capital resources, exports capital-intensive
goods and imports labour-intensive goods. He found that the US exported more labour-
intensive commodities and imported more capital-intensive products, which was contrary to
the results of Heckscher-Ohlin Model of factor endowment.
6. Country Similarity Theory of International Trade:
As per the Heckscher-Ohlin theory of factor endowment, trade should take place among
countries that have greater differences in their factor endowments. Therefore, developed
countries having manufactured goods and developing countries producing primary products
should be natural trade partners.
A Swedish economist, Staffan B. Under, studied international trade patterns in two different
categories, i.e., primary products (natural resource products) and manufactures.
It was found that in natural resource-based industries, the relative costs of production and
factor endowments determined the trade. However, in the case of manufactured goods, costs
were determined by the similarity in product demands across countries rather than by the
relative production costs or factor endowments.
It has been observed that the majority of trade occurs between nations that have similar
characteristics. The major trading partners of most developed countries are other developed
industrialized countries.
ii. The demand patterns in countries with a higher level of per capita income are similar to
those of other countries with similar income levels, as their residents would demand more
sophisticated, high quality, ‘luxury’ consumer goods, whereas those in countries with lower
per capita income would demand low quality, cheaper consumer goods as a part of their
‘necessity’.
iv. Countries with the proximity of geographical locations would also have greater trade
compared to the distant ones. This can also be explained by various types of similarities, such
as cultural and economic, besides the cost of transportation. The country similarity theory
goes beyond cost comparisons. Therefore, it is also used in international marketing.
The theory helps explain the trade patterns when markets are not perfectly competitive or
when the economies of scale are achieved by the production of specific products. Decrease in
the unit cost of a product resulting from large scale production is termed as economies of
scale.
Since fixed costs are shared over an increased output, the economies of scale enable a firm to
reduce it’s per unit average cost of production and enhance its price competitiveness.
Internal economies of scale may lead a firm to specialize in a narrow product line to produce
the volume necessary to achieve cost benefits from scale economies.
Industries requiring massive investment in R&D and creating manufacturing facilities, such
as branded software by Microsoft, microprocessors by Intel or AMD, and aircrafts by Boeing
or Airbus, need to have a global market base so as to achieve internal economies of scale and
compete effectively.
The dominance of a particular country in the world market in a specific products sector with
higher external economies of scale is attributed to the large size of a country’s industry that
has several small firms, which interact to create a large, competitive critical mass rather than
a large-sized individual firm.
However, external economies of scale do not necessarily lead to imperfect markets but may
enable the country’s industry to achieve global competitiveness. Although no single firm
needs to be large, a number of small firms in a country may create a competitive industry that
other countries may find difficult to compete with.
The automotive component industry o India and the semiconductor industry in Malaysia are
illustrations of external economies of scale. The development of sector-specific industrial
clusters, such as brassware in Moradabad, hosiery in Tirupur, carpets in Bhadoi, semi-
precious stones in jaipur, and diamond polishing in Surat, may also be attributed to external
economies
The new trade theory brings in the concept of economies of scale to explicate the Leontief
paradox. Such economies of scale may not be necessarily linked to the differences in factor
endowment between the trading partners. The higher economies of scale lead to increase in
returns, enabling countries to specialize in the production of such goods and trade with
countries with similar consumption patterns.
Besides intra-industry trade, the theory also explains intra-firm trade between the MNEs and
their subsidiaries, with a motive to take advantage of the scale economies and increase their
returns.
In addition, the gap in technology and preference and the ability of the customers in
international markets also determine the stage of international product life cycle (IPLC).
In case the innovating country has a large market size, as in case of the US, India, China, etc.,
it can support mass production for domestic sales. This mass market also facilitates the
producers based in these countries to achieve cost-efficiency, which enables them to become
internationally competitive.
However, in case the market size of a country is too small to achieve economies of scale from
the domestic market, the companies from these countries can alternatively achieve economies
of scale by setting up their marketing and production facilities in other cost-effective
countries.
Thus, it is the economies of scope that assists in achieving the economies of scale by
expanding into international markets. The theory explains the variations and reasons for
change in production and consumption patterns among various markets over a time period, as
depicted in Fig. 2.3.
The IPLC has four distinct (Exhibit 2.2) identifiable stages that influence demand structure,
production, marketing strategy, and international competition as follows.
(i) Introduction:
Generally, it is in high-income or developed countries that the majority of new product
inventions take place, as product inventions require substantial resources to be expended on
R&D activities and need speedy recovery of the initial cost incurred by way of market-
skimming pricing strategies.
Since, in the initial stages, the price of a new product is relatively higher, buying the product
is only within the means and capabilities of customers in high-income countries. Therefore, a
firm finds a market for new products in other developed or high income countries in the
initial stages.
(ii) Growth:
The demand in the international markets exhibits an increasing trend and the innovating firm
gets better opportunities for exports. Moreover, as the market begins to develop in other
developed countries, the innovating firm faces increased international competition in the
target market.
In order to defend its position in international markets, the firm establishes its production
locations in other developed or high income countries.
(iii) Maturity:
As the technical know-how of the innovative process becomes widely known, the firm begins
to establish its operations in middle- and low-income countries in order to take advantage of
resources available at competitive prices.
(iv) Decline:
The major thrust of marketing strategy at this stage shifts to price and cost competitiveness,
as the technical know-how and skills become widely available. Therefore, the emphasis of
the firm is on most cost-effective locations rather than on producing themselves.
Besides other middle-income or developing countries, the production also intensifies in low-
income or least-developed countries (LDCs). As a result, it has been observed that the
innovating country begins to import such goods from other developing countries rather than
manufacturing itself.
The UK, which was once the largest manufacturer and exporter of bicycles, now imports this
product in large volumes. The bicycle is at the declining stage of its life cycle in
industrialized countries whereas it is still at a growth or maturity stage in a number of
developing countries.
The chemical and hazardous industries are also shifting from high-income countries to low-
income countries as a part of their increasing concern about environmental issues, exhibiting
a cyclical pattern in international markets.
Although the product life cycle explains the emerging pattern of international markets, it has
got its own limitations in the present marketing era with the fast proliferation of market
information, wherein products are launched more or less simultaneously in various markets.
The efficiency, quality, and specialization of underlying inputs that firms draw while com-
peting in international markets are influenced by a country’s factor conditions.
The inherited factors in case of India, such as the abundance of arable land, water resources,
large workforce, round-the-year sunlight, biodiversity, and a variety of agro-climatic
conditions do not necessarily guarantee a firm’s international competitiveness.
Rather the factors created by meticulous planning and implementation, scientific and market
knowledge, physical and capital resources and infrastructure, play a greater role in
determining a firm’s competitiveness.
(ii) Demand Conditions:
The sophistication of demand conditions in the domestic market and the pressure from
domestic buyers is a critical determinant for a firm to upgrade its product and services. The
major characteristics of domestic demand include the nature of demand, the size and growth
patterns of domestic demand, and the way a nation’s domestic preferences are transmitted to
foreign markets.
As the Indian market has long been a sellers’ market, it exerted little pressure on Indian firms
to strive for quality up gradation in the home market. However, as a result of India’s
economic liberalization, there has been a considerable shift in the demand conditions.
This explains the development of industrial clusters, such as IT industries around Bangalore,
textile industries around Tirupur, and metal handicrafts around Moradabad.
In India, the management system is paternalistic and hierarchical in nature. In the system of
mixed economy with protectionist and monopolistic regulations, the intensity of competition
was almost missing in major industrial sectors.
It was only after the economic liberalization that the Indian industries were exposed to market
competition. The quality of goods and services has remarkably improved as a result of the
increased intensity of market competition. Two additional external variables of Porter’s
model for evaluating national competitive advantage include chance and
government, discussed below.
(v) Chance:
The occurrences that are beyond the control of firms, industries, and usually governments
have been termed as chance, which plays a critical role in determining competitiveness. It
includes wars and their aftermath, major technological breakthroughs, innovations, exchange
rates, shifts in factor or input costs (e.g., rise in petroleum prices), etc.
Some of the major chance factors in the context of India include disintegration of the
erstwhile USSR and the collapse of the communist system in Eastern Europe, opening up of
the Chinese market, the Gulf War, etc.
(vi) Government:
The government has an important role to play in influencing the determinants of a nation’s
competitiveness. The government’s role in formulating policies related to trade, foreign
exchange, infrastructure, labour, product standards, etc. influences the determinants in the
Porter’s diamond.
India has made remarkable progress in improving its global competitiveness during the recent
years. The rapid rise in the share of the working age population for the last 20 years would
add to favourable demographics to India’s competitiveness.
However, to benefit from this India will have to find ways to bring its masses of young
people into the workforce, by spending on education and improving the quality of its
educational institutions so as to enhance the productivity of its young.
Moreover, the country still has to take effective measures (Exhibit 2.3) to deal with its
bureaucratic red-tape, illiteracy, and infrastructure bottlenecks, especially road, rail, seaports
and airports, and electricity, among others, so as to boost its global competitiveness.
Trade was considered to be a zero-sum game under the mercantilism theory wherein one
country gains at the cost of the other. However, a new form of mercantilism, known as neo-
mercantilism, is followed by a number of countries so as to increase their trade surpluses. In
1776, Adam Smith advocated the concept of free trade as a means of increasing gains in
world output from specialization.
The theory of absolute advantage suggests that a country should produce and export those
goods that it can produce more efficiently. David Ricardo’s theory of comparative advantage
was based on the international differences in labour productivity and advocates international
trade even if a country does not have an absolute advantage in the production of any of its
goods.
Although it is possible for a country not to have an absolute advantage in production of any
good, it is not possible for it not to have a comparative advantage in any of the goods it
produces. In the later case, the country should specialize in the production and export of those
goods that can be produced more efficiently as compared to others.
The factor endowment theory highlights the interplay between proportions in which the
factors of production such as land, labour, and capital are available to different countries and
the proportions in which they are required for producing particular goods. Trade between
countries with similar characteristics such as economic, geographic, cultural, etc. is explained
by the country’ similarity theory.
The new trade theory explains the specialization by some countries in production and exports
of particular products as international trade enables a firm to increase its output due to its
specialization by providing much larger market that results into enhancing its efficacy.
The shifting patterns of production location are elucidated by the theory of IPLC that
influences demand structure, production, the innovator company’s marketing strategy, and
international competitiveness. The theory of competitive advantage comprehensively deals
with the micro-economic business environment as the determinants of competitive advantage.
Earlier trade theories suggested the shift in comparative advantage in low-skilled production
activities from advance economies to developing countries. The product life-cycle theory too
heavily relied on such presumptions.
However, in recent years, the rapid shift of high-value activities such as R&D, technology-
intensive manufacturing, and white-collar jobs to India and other Asian countries have
evoked considerable apprehension among intellectuals in the US and other advanced
economies about whether free trade is still beneficial for their countries or not.
This concern has been illustrated through Exhibit 2.4. It is likely to continue as a matter of
serious debate and the upcoming economic thought may witness a significant deviation in
terms of the support to theories based on free trade and, in him, globalization.
In this article we will discuss about the Kravis theory of trade along with its weaknesses.
An important extension of international trade theory given by Heckscher and Ohlin is the
availability approach to international trade. This approach was given by Irving B. Kravis in
1956. According to Kravis, it is the domestic availability or non-availability of goods that
governs the pattern of trade. Kravis, while attempting to test the generalisation of H-O theory
that labour-abundant countries export labour-intensive goods, found that the exporting-
industries invariably had been paying relatively high wage rates even in those countries.
Kravis, therefore, asserted that the nations would export those products which were readily
available in the home country. They would tend to import, on the contrary, such products the
domestic supply of which had been short of their demand. According to him, the essential
basis of international trade has been the ‘non-availability of goods at home’. The non-
availability of goods in the home country may either be in the absolute or the relative sense.
In the former case, certain goods may not be available at all in the home country such as
diamonds in the U.S. economy. The non-availability in the relative sense signifies that the
domestic supply of products is short of their demand and the additional output of those goods
can be possible in the home country at much higher costs. The principle of comparative
advantage in such a case comes into its own and countries prefer to import such products
from abroad rather than to produce them at home at the prohibitive costs.
Kravis maintains that the domestic availability or otherwise of certain specified
products in a particular country is governed by:
(i) Natural Resources:
If a country is well- endowed with minerals like iron ore, bauxite and oil, the products which
involve the use of such materials will be produced in large quantity in the home country. A
part of production of these products will be exported abroad. On the opposite, if there is
scarcity of forest products in a given country, the scarcity thereof can be met by importing
them from abroad. Thus the pattern of trade of a given country is influenced by the relative
abundance or scarcity of natural resources.
The line OR starting from origin indicates the demand proportions of two commodities in
these countries. OR intersects AA1 and A1B at S1 and S respectively. The point S1 indicates
that country A requires OQ quantity of steel and S 1Q quantity of wheat. The point S indicates
that country B requires OQ1 quantity of steel and SQ1 quantity of wheat. The point of
production in country A is T1.
Thus country A has TjN1 quantity of steel over and above the quantity required by it. The
excess availability of steel in this country will be exported to country B. The point of
production in country B is T. At this point country B has TN quantity of wheat over and
above its domestic requirement. The excess availability of wheat in this country will be
exported to country A.
Findley argues that availability approach has superiority over the factor proportions approach.
Although two countries have equal endowments of labour and capital, yet country A
produces and exports the capital-intensive commodity steel and country B produces and
exports the relatively less capital-intensive commodity wheat. It is not fully consistent with
the factor proportions theory.
However, the availability theory recognises that the trade pattern between these two countries
is governed by the availability of more land in country B and iron ore in country A. Thus
Kravis’ availability theory seems to be better than the factor proportions theory.
Weaknesses:
No doubt, Kravis’ availability theory provides a more precise and specific explanation of the
pattern of trade. It is, in some respects, even better than both comparative costs and factor
proportions approaches. But there are certain weaknesses in this model of trade.
(i) Limited Applicability:
In this model, the pattern of trade is explained on the basis of availability of more land in one
country and more iron ore in the other country. The number of product- specific resources
may be quite large. The determination of the trade pattern, in such a situation, is likely to be
very difficult and complex. The multi- commodity approach based on comparative advantage
may seem to be more appropriate in such a situation.
According to this model, as a firm develops a new product, its first test is in the home market.
After it is proved to be successful in the home market, the efforts are made to introduce it in
the foreign markets. The new products confer a temporary monopoly position upon the
producing firm or exporting country in the world trade. This monopoly position is often
protected by the patents and copyrights. The exporting country enjoys comparative advantage
over the rest of the world until the foreign producers imitate the new varieties of products or
learn new processes of production.
Assumptions:
The main assumptions in Posner’s theory are as follows:
(i) There are two countries, A and B.
ADVERTISEMENTS:
(ii) The factor endowments are similar in two countries.
(iv) The factor price ratios in the two countries are similar before trade.
The lag existing between the appearance of new products and introduction of their substitutes
by the foreign producer manifests the technological gap or imitation gap. Posner has
decomposed the technological gap into three components—the foreign reaction lag, domestic
reaction lag and the demand lag.
The foreign reaction lag is the time taken by the first foreign firm to produce the new variety
of product. The domestic reaction lag signifies the time required by the domestic producers to
introduce still newer varieties in order to establish their hold on the domestic market and
sustain it in the foreign market. The demand lag means the time taken by the domestic
consumers to acquire a taste for the new product.
Posner referred the integration of innovation and imitation lag as ‘dynamism’. According to
him, a dynamic country in international trade is one which innovates at a greater rate and
which imitates the foreign innovations at a greater speed. If one of the two trading countries
has a greater degree of dynamism than the other, the latter will find the erosion of its markets
and consequent deficit in trade balance.
According to Posner, if the two countries are otherwise identical, whether trade between them
will be generated by technological innovation, will depend on the net effect of the demand
and imitation lags. If the demand lag is longer than the imitation lag, the producers in the
imitating country would adopt the new technology before the consumers in their home
market had started demanding the new good. In this case, the technological innovation would
not generate trade.
On the other hand, if the imitation lag is longer than the demand lag, the international trade is
likely to be generated by innovation. So the pattern of trade between the two countries will
depend upon the relative duration of the two lags.