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Managerial Economics
Demand Forecasting
Demand Forecasting
   It means expectation about future course of
    the market demand for a product based on
    statistical data about past behavior and
    empirical relationships of demand
    determinants
   Types/Objectives of Demand Forecasting
       Short term
       Long term
Short Term Forecasting
   It normally relates to a period not exceeding a
    year

   Benefits of Short term forecasting
       Drafting of Production Policy
       Evolving a Sales Policy
       Determining Price Policy
       Fixation of Sales Target
Long Term Forecasting
   It refers to the forecasts prepared for long
    period during which the firms scale of
    operations or the production capacity may be
    expanded or reduced.

       Benefits of Long term forecasting
       Business Planning
       Manpower Planning
       Long-Term Financial Planning
COMPONENTS OF DEMAND
       FORECASTING SYSTEM
   Market research operations to procure relevant and
    reliable information about the trends in market.
    A data processing and analysing system to estimate
    and evaluate the sales performance in various
    markets.
    Proper co-ordination of steps (i) and (ii) above
   Placing the findings before the top management for
    making final decisions.
Significance /Use/ Importance of
          Demand Forecasting
   Production Planning
   Sales Forecasting
   Control of Business
   Inventory Control
   Growth and Long Term Investment Program
   Economic Planning and Policy Making
   Avoiding Surplus and Inadequate
    Production
Sources of Data
   Primary: which are collected for first time for
    purpose of analysis
   Secondary : are those which are obtained
    from someones else records
Techniques of Demand Forecasting
                   Survey
                   Methods

      Consumer Survey                       Opinion Poll
                                             Methods

                                                           Market Studies
 Complete                    Expert
                                                                 &
Enumeration                  Opinion                        Experiments


  Sample                               Delphi
  Survey                               Method       Market Test



                                                    Laboratory
                                                       Test
Consumer Survey Methods
   Complete enumeration Method: All potential users of
    product are contacted and are asked about their future
    plan of purchasing the product in question
   Limitations
       Very expensive in case of widely dispersed market
       Consumers may not know their actual demand and may
        br unable to answer query
       Their plans may change with a change in factors not
        included in questionnaire
Contd.
   Sample Survey: Only a few potential
    consumers and users selected from relevant
    market are surveyed
   Method is simpler, less costly and less time
    consuming.
    Surveys are done to understand market
    demand, tastes ad preferences, Consumer
    expectations etc
Opinion Poll Method
   Aim at collecting opinions of those who are
    supposed to possess the knowledge of the
    market e.g sales representatives, sales
    executives, consultants and professional
    marketing experts
   This method includes
   Expert opinion
   Delphi method
Expert opinion
   Under this method each expert is asked independently to
    provide a confidential estimate and results could be averaged.

   Experts may include executives directly involved in the
    market such as suppliers, distributors or dealers or marketing
    consultants, officers of trade association etc.

   Advantage is that there is no danger that group of experts
    develop a group- think mentality. Moreover, forecasting is
    done quickly and easily without need of elaborate need of
    statistics.
Delphi Method
   This method is an attempt to arrive at a consensus on
    some issues by questioning a group of experts
    repeatedly until the responses appear to converge
    along a single line or the issues causing
    disagreement are clearly defined.
   Generally a panel consisting 9 to 12 experts
   A coordinator is required for the process
Market Experimentation

   Test marketing
       A test area is selected, which should be a representative of the
        whole market in which the new product is to be launched.

       A test area may include several cities having similar features i.e.
        population, income levels, cultural and social background, choice
        and preferences of consumers

       Market experiments are carried out by changing prices,
        advertisement expenditure and other controllable variables
        influencing demand

       After such changes are introduced in the market, consequent
        changes in demand over a period of time are recorded.
Contd.
   Experiments in laboratory or consumer clinic
    method
       Under this method consumers are given some money to
        buy in a stipulated store goods with varying prices,
        packages, displays etc.

       They are also requested to fill a questionnaire asking
        reasons for the choices they have made

       The experiment reveals the consumers responsiveness to
        the changes made in prices, packages and displays.
Limitations of market
       experiment methods
   Very expensive
   Being costly, carried out on a scale too small to permit
    generalization with a high degree of reliability
   Based on short term and controlled conditions which
    may not exist in an uncontrolled market
   Tinkering with price increases may cause a permanent
    loss of customers to competitive brands
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Demand forecasting

  • 2. Demand Forecasting It means expectation about future course of the market demand for a product based on statistical data about past behavior and empirical relationships of demand determinants Types/Objectives of Demand Forecasting Short term Long term
  • 3. Short Term Forecasting It normally relates to a period not exceeding a year Benefits of Short term forecasting Drafting of Production Policy Evolving a Sales Policy Determining Price Policy Fixation of Sales Target
  • 4. Long Term Forecasting It refers to the forecasts prepared for long period during which the firms scale of operations or the production capacity may be expanded or reduced. Benefits of Long term forecasting Business Planning Manpower Planning Long-Term Financial Planning
  • 5. COMPONENTS OF DEMAND FORECASTING SYSTEM Market research operations to procure relevant and reliable information about the trends in market. A data processing and analysing system to estimate and evaluate the sales performance in various markets. Proper co-ordination of steps (i) and (ii) above Placing the findings before the top management for making final decisions.
  • 6. Significance /Use/ Importance of Demand Forecasting Production Planning Sales Forecasting Control of Business Inventory Control Growth and Long Term Investment Program Economic Planning and Policy Making Avoiding Surplus and Inadequate Production
  • 7. Sources of Data Primary: which are collected for first time for purpose of analysis Secondary : are those which are obtained from someones else records
  • 8. Techniques of Demand Forecasting Survey Methods Consumer Survey Opinion Poll Methods Market Studies Complete Expert & Enumeration Opinion Experiments Sample Delphi Survey Method Market Test Laboratory Test
  • 9. Consumer Survey Methods Complete enumeration Method: All potential users of product are contacted and are asked about their future plan of purchasing the product in question Limitations Very expensive in case of widely dispersed market Consumers may not know their actual demand and may br unable to answer query Their plans may change with a change in factors not included in questionnaire
  • 10. Contd. Sample Survey: Only a few potential consumers and users selected from relevant market are surveyed Method is simpler, less costly and less time consuming. Surveys are done to understand market demand, tastes ad preferences, Consumer expectations etc
  • 11. Opinion Poll Method Aim at collecting opinions of those who are supposed to possess the knowledge of the market e.g sales representatives, sales executives, consultants and professional marketing experts This method includes Expert opinion Delphi method
  • 12. Expert opinion Under this method each expert is asked independently to provide a confidential estimate and results could be averaged. Experts may include executives directly involved in the market such as suppliers, distributors or dealers or marketing consultants, officers of trade association etc. Advantage is that there is no danger that group of experts develop a group- think mentality. Moreover, forecasting is done quickly and easily without need of elaborate need of statistics.
  • 13. Delphi Method This method is an attempt to arrive at a consensus on some issues by questioning a group of experts repeatedly until the responses appear to converge along a single line or the issues causing disagreement are clearly defined. Generally a panel consisting 9 to 12 experts A coordinator is required for the process
  • 14. Market Experimentation Test marketing A test area is selected, which should be a representative of the whole market in which the new product is to be launched. A test area may include several cities having similar features i.e. population, income levels, cultural and social background, choice and preferences of consumers Market experiments are carried out by changing prices, advertisement expenditure and other controllable variables influencing demand After such changes are introduced in the market, consequent changes in demand over a period of time are recorded.
  • 15. Contd. Experiments in laboratory or consumer clinic method Under this method consumers are given some money to buy in a stipulated store goods with varying prices, packages, displays etc. They are also requested to fill a questionnaire asking reasons for the choices they have made The experiment reveals the consumers responsiveness to the changes made in prices, packages and displays.
  • 16. Limitations of market experiment methods Very expensive Being costly, carried out on a scale too small to permit generalization with a high degree of reliability Based on short term and controlled conditions which may not exist in an uncontrolled market Tinkering with price increases may cause a permanent loss of customers to competitive brands