How the use of different theoretical perspectives can help us in understanding how markets function

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Introduction:

The aim of this essay is to answer the 2 parts of the provided question.  In the first part I will discuss the different markets models and how those different models describe the way markets function.  While the second part will discuss how and why markets are limited and failure cases happens.  An example case of a market failure is to be provided to assist this part of the discussion, and for this purpose I chose the affect of SARS in the airline and tourism markets as an example.

How the use of different theoretical perspectives can help us in understanding how markets function

Markets are a mechanism which allows people to trade normally, governed by the Law of Supply and Demand.  Markets have different structures or models, all function under the view of competition.

Competition in economic terms is understood to be the situation in market where the monopoly power is absent or very limited and no power is influencing product price or quality.  Hence a competitive market is the one in which none of the participants possess market power.  A competitive market achieves efficiency in the allocation of scarce resources if there are not other market failures present.

The major four known competitive market models are:

  1. Dynamic Competition put forward by J. Schumpeter.
  2. Perfect Competition put forward by the Neo-classical followers.
  3. Competition as a process of adjustment to change, put forward by F. Hayek; and
  4. Competition as a power struggle, put forward by Sen.

The main characteristics that define a market model are:

  1. The number of firms in a market.
  2. The ease of entry and exit from the market; and
  3. The type of products and to what degree it is differentiated.

Dynamic Competition:

Schumpeter's view of this model of competitive markets stands on the basis of competition over innovations in products and process and not price competition.  So firms that do not move ahead faster than their competitors will fall behind and eventually will go out of business.  This process of "innovate or go bust" is what Schumpeter calls "creative destruction".

The result of such creative destruction would be a regular changing structure of the economy and improving living standards over the years.

According to Schumpeter we should not put too much emphasis on static efficiency related to perfect competition because this tends to kill technological change.  Instead we should recognize that some degree of monopoly power is a necessity to keep going the process of infrastructure growth and development.

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The main features of this model are:

  • Short term monopolies are useful to enable firms to accumulate the required resources.
  • Large firms are important in the evolutionary procedure of the economy; and
  • Markets operate under this view achieve reduction in cost and improvement in quality which results from two sources:

  • Technological advances
  • Economies of scale.

Some opposing argument would be that this model does allow a problem of monopoly, which governments need to regulate to limit the abuse of power.  

Perfect Competition - Neo-classical model:

While the dynamic ...

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