Porter's Diamond theory

FACULTY OF MANAGEMENT
MASTER OF BUSINESS ADMINISTRATION
INTERNATIONAL BUSINESS MANAGEMENT
ASSIGNMENT ON
PORTER'S DIAMOND THEORY
SUBMITTED BY
RAJESH NARAYANAN
REG.NO. 3511210125
MERVIN JOSE A
REG.NO. 3511210126
SUBMITTED TO
Mr.P.B.GOVINDARAJAN
FACULTY IN-CHARGE
INTERNATIONAL BUSINESS MANAGEMENT
SRM SCHOOL OF MANAGEMENT
SRM UNIVERSITY
KATTANKULATHUR-603 203

Porter’s Theory of Competitive Advantage
Michael Porter’s theory of the competitive advantage of nations provides a sophisticated
tool for analyzing competitiveness with all its implications. Porter’s theory contributes to
understanding the competitive advantage of nations in international trade and production. Its
core, however, focuses upon individual industries, or clusters of industries, in which the
principles of competitive advantage are applied. His theory begins from individual industries and
builds up to the economy as a whole. Since firms, not nations compete in international markets,
understanding the way firms create and sustain competitive advantage is the key to explaining
what role the nation plays in the process. Therefore, the essence of his argument is that “the
home nation influences the ability of its firms to succeed in particular industries”. Given this
interdependence, it appears that in order to draw conclusions on the competitiveness of the
particular industry, consideration of the different facets of the competitive diamond of the whole
nation is needed.
Michael Porter considers the competitiveness of a country as a function of four major
determinants:





Factor conditions;
Demand conditions;
Related and supporting industries; and,
Firm strategy, structure, and rivalry.

Even though these determinants influence the existence of competitive advantage of an
entire nation, their nature suggests that they are more specific of a particular industry rather than
typical of a country. The reason for this is that in Porter’s theory the basic unit of analysis for
understanding competition is the industry. “The industry is the arena in which the competitive
advantage is won or lost.” So, seeking to isolate the competitive advantage of a nation means to
explain the role played by national attributes such as a nation’s economic environment,
institutions, and policies for promoting firms’ ability to compete in a particular industry.

1. Factor Conditions
Factor conditions being the inputs which affect competition in any industry comprise a
number of broad categories:


Human resources: the quantity, skills, and cost of personnel (including
management);
 Physical resources: the abundance, quality, accessibility, and cost of the
nation’s land, water, mineral, or timber deposits, hydroelectric power sources,
fishing grounds, and other physical traits.
 Knowledge resources: the accumulated scientific, technical, and market
knowledge in a nation in the sphere of goods and services
 Capital resources: the stock of capital available in a country and the cost
of its deployment;
 Infrastructure resources: the characteristics (including type, quality) and
the cost of using the infrastructure available.
While analyzing these factors as a prerequisite for building competitive advantage, it is
relatively unimportant to emphasize just their quantity or involvement in a particular industry.
What determines their influence on competitiveness is the degree of efficiency and effectiveness
of the way they are deployed within an industry.
This in turn affects directly their potential for influencing the establishment of
competitive advantage. Nevertheless, productivity in deployment does not automatically
translate into international success. This is achieved only under the condition that the other
determinants in the “diamond” are in a position to influence favorably the utilization of
production factors. With a view of isolating the factors which are most significant for the
creation of competitive advantage in the context of the whole “diamond”, a hierarchy among
factors has been established.
Depending on the degree of investment required for the possession of a particular factor, factors
of production are divided into two groups: basic and advanced. Basic factors are passively
inherited, that is, their creation requires relatively modest or unsophisticated private and social
investment. They can include natural resources, climate, location, unskilled or semi-skilled labor,
and debt capital. Unlike them, advanced factors which can comprise highly educated personnel,
modern digital data communications infrastructure, etc. require large and often sustained
investments for their development. Factor development which has been achieved through
substantial investment, in turn, provides for the creation of a higher-order competitive advantage
and, therefore, assumes greater significance for competitiveness.
Distinguishing among factors for he purpose of isolating those which account for the
establishment of competitive advantage most, yields another division: generalized and
specialized factors. Generalized factors derive their name from the feature that they could be
deployed in a wide range of industries. Specialized factors, on the other hand, are characterized
by a narrow field of application due to a high degree of customization to the needs of a particular
industry. Compared to the generalized factors, specialized factors require more focused, and

often riskier, private and social investment. This, together with their specifically tailored
characteristics to the nature of the particular industry, determines their superiority over
generalized factors in terms of influencing the creation of competitive advantage. With respect to
the relation between advanced and specialized factors, the latter do not necessarily comprise the
former, but at any rate the more constantly upgrading and developing advanced and specialized
factors of production exist in an industry, the better is the basis for a significant and sustainable
advantage in a given field.

2. Demand Conditions
The importance of demand conditions as a factor influencing competitive advantage
stems from the fact that in a market economy the direction of production, that is, the kinds of
goods which are produced, is determined by the needs of buyers. What this means is that,
regardless of the state of the other determinants in the “diamond”, competitiveness in an industry
is impossible to be achieved unless demand conditions allow for the successful realization of
firms’ products. Underlying this dependence is the dynamic influence of home demand which
shapes the rate and character of improvement and innovation by a nation’s firms. The sources of
this influence within the context of home demand are divided into three broad attributes: the
composition of home demand, the size and pattern of growth of home demand, and the
mechanisms by which a nation’s domestic preferences are transmitted to foreign markets.


Home Demand Composition: The composition of home demand
determines the way firms perceive, interpret, and respond to buyer needs.
Three characteristics of the composition of home demand play a particularly
significant role for the achievement of competitive advantage. One of them
refers to the segment structure of demand. It is quite favorable for enhancing
competitiveness provided that the relevant segment of the market represents a
highly visible share of home demand but accounts for a less significant share in
other nations. An even more important feature of home demand composition is
the level of buyers’ sophistication. Its significance stems from the fact that
sophisticated and demanding buyers exert pressure on firms to excel in quality
of the product, features, and service and thus help for sustaining the acquired
advantage. A final attribute of home demand composition which could spur the
establishment of competitive advantage relates to anticipatory buyer needs.
They give priority of firms over their international competitors by indicating
early what will become widespread later.

Demand Size and Pattern of Growth: In order for a clear relationship
between this attribute of home demand and competitive advantage to be
established, a number of its characteristics should be considered. One of them
is the size of home demand. Its importance is expressed in the fact that
depending on the magnitude of the home market a nation's firms could be
encouraged, with a view of reaping economies of scale and learning, to invest
aggressively in large-scale facilities, technology development, and productivity
improvement.. Another important factor which could spur activities intended to

create or upgrade competitive advantage is the rate growth of home demand.
The latter could lead firms to adopt new technologies faster and to make
changes for increased efficiency without fearing that there would be no
response on the part of consumers. The effect of these two factors is further
enhanced provided that home demand is characterized by early saturation as
well. The underlying logic is that early saturation, like early penetration,
directs a nation’s firms to products and product features that are desired
abroad.

Internalization of Domestic Demand: While the source for creating
national advantage is rooted in the composition of home demand, its
sustainability is accounted for by the size and pattern of growth of home
demand, the transfer of a nation’s products and services abroad relates to a
third attribute of home demand – its capacity of becoming internalized. This
attribute refers to the existence of mobile or multinational local buyers which
could create an advantage for a nation’s firms since domestic buyers are also
foreign buyers. It hints on the other aspect of this attribute: the influence
exerted on foreign needs. The latter presents another way through which
domestic demand conditions can pull through foreign sales and relates to the
cases when domestic needs and desires get transmitted to or inculcated in
foreign buyers.

3. Related and Supporting Industries
When trying to determine the sources of competitive advantage in an industry, the latter
should not be considered separately but rather in the context of the whole economy. Special
account should be taken of the industries which are directly related or support the one whose
competitiveness is a subject of investigation. The reason for this requirement is that, provided
supplier industries possess an international advantage, downstream industries could benefit from
it in several ways. One of them refers to the access that competitive supplier industries provide
access to cost-effective inputs. Given the increasingly significant globalization process, which
makes inputs available on global markets, emphasis should be put not on the availability of the
inputs but on their effective utilization. Therefore, a more important aspect in which the presence
of competitive advantage in supplier industries could influence the creation of one in the
downstream industries is the provision of coordination on the part of the former in terms of
linkages with the value chains of the latter. Perhaps the most important benefit of home-based
suppliers, however, is expressed in the process of innovation and upgrading. It refers to a mutual
influence between firms and their suppliers. On the one hand, suppliers help firms to perceive
new methods and opportunities to apply new technology. A spur to innovation could, on the
other hand, be given from firms to their suppliers by influencing suppliers’ technical efforts in a
direction of testing new developments and ideas. Other factors such as exchange of R&D, joint
problem solving or transmitting of information through suppliers to different firms contribute to
the establishment of a fast pace of innovation within the entire national industry.

In regard to related industries, they could also be a source of competitive advantage to the
industry in question. “Related industries are those in which firms can coordinate or share
activities in the value chain when competing, or those which involve products that are
complementary.” Technology development, manufacturing, distribution, marketing or service are
all areas in which sharing of activities could occur. This process is especially beneficial, given
that the related industry is internationally successful, which means that it stimulates the
establishment of competitive advantage in other industries through providing opportunities for
information flow and technical interchange. Another way through which related industries could
influence competitiveness is by means of pulling through demand for complementary products
and services. The greater the number of related industries which possess competitive advantage
in a nation, the greater is the possibility for this nation to achieve sustained success in an
industry. This, however, depends to a significant extent on the state of the factors forming the
rest of the “diamond” because it is only when the facets are working in a system that the
conditions for building a true competitive advantage are ensured.

4. Firm Strategy, Structure, and Rivalry
Closing the circle of factors which determine the existence of competitive advantage it is
necessary to consider the context in which firms are created, organized and managed as well as
the nature of domestic rivalry. The goals, strategies, and ways of organizing firms in industries
are widely influenced by national circumstances. The achievement of national advantage
depends on the degree to which these choices correspond to the sources of competitive advantage
in an industry. Firm strategy and structure are reflective of company goals and individual goals
as well as national prestige and national priority. Company goals are most strongly determined
by ownership structure, the motivation of owners and holders of debt, the nature of the corporate
governance, and the incentive processes that shape the motivation of senior managers. Provided
that the goals of owners and managers match the needs of the industry, the opportunities for
success are greatly enhanced. As far as the goals of individuals who work in firms are concerned,
they also have a significant role for creating and upgrading competitive advantage. The
achievement of the latter depends on the motivation of people to develop their skills as well as
to expend the necessary effort needed for the company’s success. Another source of powerful
influence on the way firms are organized is national prestige or national priorities. These factors
affect the process of attracting qualified human resources to particular industries as well as the
strength of individuals’ and shareholders’ motivation. Provided that the latter is quite
pronounced it also turns into an important conductor of corporate success. The reason for it is
that it assures sustained commitment of capital and human resources to an industry, to a firm,
and for employees, to a profession. This in turn enhances productivity and effectiveness.
The stimuli for increased productivity and effectiveness should also be traced at a higher
level which encompasses not only the manner of a firm’s organization but also its performance
as influenced by the behaviour of its competitors. In this respect, an important correlation based
on empirical findings has been established. It concerns the association between vigorous
domestic rivalry and the creation and persistence of competitive advantage in an industry. The
underlying logic is that competition at home pressures firms to improve and innovate. Having

once established the manner for constant upgrading of their competitive edge at home,
companies easily transfer their strategy for success on a worldwide scene. Vigorous local rivalry
can also stimulate competitiveness through bringing fourth the need for enlarging the firms’
markets and selling abroad in order to grow. This is particularly likely in the presence of
economies of scale when local competitors force each other to direct their activities abroad in the
pursuit of greater efficiency and higher profitability. Domestic rivalry not only creates pressures
to innovate but to innovate in ways that upgrade the competitive advantages of a nation’s firms.
The presence of rivals lowers the significance of advantages created through little effort and
investment (e. g. those which stem simply from being in a nation). It, therefore, forces a nation’s
firms to seek higher and ultimately more sustainable sources of competitive advantage. So,
contrary to the wrongly perceived notion of “national champions” reaping economies of scale in
the home market, the existence of strong domestic rivalry keeps from reliance on factor
advantages as well as conditions their more efficient deployment.
Apart from the major determinants Porter considers two additional variables which are
not as important as the determinants in influencing the creation of a competitive advantage but
are significant in shaping the direction of the influence. These are chance and government.
Chance events are developments beyond the control of firms, such as pure inventions,
breakthroughs in basic technologies, etc. They can play an important role in shifting competitive
advantage in many industries. Government, being the other variable, is important to the extent to
which its policies can influence the entire system of determinants either in the direction of
undermining or enhancing competitive advantage.
Important in understanding the determinants’ power to foster competitiveness in an
industry is the condition for their being interrelated. What this means is that the determinants
should form a mutually reinforcing system, referred to as a “diamond” and the effect of one of
them should be contingent on the state of others. This implies not only the inadequacy of one
favourable national attribute to induce competitive advantage itself but also the possibility that
an advantage in one determinant can create or upgrade advantages in others.

Porter's Diamond theory

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