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Value Chain

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Value Chain

Value Chain is the linked set of value-creating activities from raw materials to the finished products,
which are used by consumers. This concept was given by Michael Porter in his book Competitive
Advantage: Creating and Sustaining Superior Performance.

The following diagram shows a firm’s value chain.

Need for Value Chain Costing


The value chain framework helps a firm in understanding its strategically important activities. It helps a
firm in indentifying and selecting those activities that can be used to produce and sustain a competitive
advantage. This selection process requires the knowledge of cost and value of each activity. After
ascertaining the cost of each activity, a firm can try to get a cost advantage over its competitors. This can
be done in two ways:

1. Reducing the cost of individual value chain activities


2. Reconfiguring the value chain
In case of the first method, the firm may try and reduce or modify the costs incurred in the value
creating activities and for the activities that give it a competitive advantage.

On the other hand, the firm may also try to reconfigure its value chain, which means introduction of
structural changes such as a new production process, new distribution channels or a different sales
approach.

Value Chain Decisions


The value chain model can be used to decide a firm’s strategy. The following decisions have to be taken
by a firm:

 Whether to take Cost Advantage over the competitors


 Whether to pursue Diffrentiation

Cost Drivers in a Value Chain


According to Michael Porter, the following are the cost drivers in a value chain:

 Economies of Scale
 Learning
 Capacity Utilization
 Linkages among activities
 Interrelationships among business units
 Degree of vertical integration
 Timing of market entry
 Firm’s policy of cost or differentiation
 Geographic Location
 Institutional factors like regulations, taxes, union activity etc.

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