Production of Goods and Services Study Notes

Overview of Production

• Definition of Production: The provision of a product or service to satisfy consumer wants and needs. The production process transforms raw materials and components into finished goods or services, adding value.

• Factors of Production: Inputs used to produce goods/services:

  • Land: Natural resources available for production (e.g., minerals, farmland).

  • Labour: The human effort, both mental and physical, used in production.

  • Capital: Man-made resources used to produce other goods (e.g., machinery, tools, buildings).

  • Enterprise: The skill and risk-taking ability of the entrepreneur who brings the other factors together.

• Value Added: The difference between the cost of inputs and the final selling price. Businesses can increase value added by:

  • Improving quality or adding features to justify a higher price.

  • Building a strong brand image.

  • Reducing the cost of raw materials through better sourcing without compromising quality.

Differences between Production and Productivity

• Level of Production: The total output of a business over a specific time period, e.g., one year.

• Productivity: Measures efficiency, characterized by the equation:

$\text{Productivity} = \frac{\text{Output}}{\text{Quantity of Input}}$

• Labour Productivity: A common measure of productivity for labour, calculated as:

$\text{Labour Productivity} = \frac{\text{Output (over a period)}}{\text{Number of Employees}}$

• Importance of Productivity: Higher productivity leads to lower average costs ($\text{Total Cost} / \text{Output}$), allowing for higher profits or lower prices for consumers.

Increasing Efficiency and Productivity

• Automation and Mechanization:

  • Mechanization: Tasks are done by machines but operated by people.

  • Automation: Tasks are done entirely by machines/computers with minimal human intervention.

• Employee Training: Reduces errors and increases the speed of task completion.

• Motivation Strategies: Using financial (e.g., bonuses) or non-financial (e.g., job enrichment) rewards to encourage harder work.

Reasons for Holding Inventories

• Definition of Inventory (Stock): Raw materials, components, work-in-progress, and finished goods.

• Functions: Ensures production does not stop if a supplier fails; allows the business to meet unexpected surges in demand.

• Costs of Holding Inventory:

  • Storage Costs: Rent, heating, and lighting for warehouses.

  • Opportunity Cost: Capital tied up in stock could be invested elsewhere.

  • Obsolescence: Risk of products going out of date or becoming unfashionable.

Lean Production Concepts

• Definition: An approach to production that emphasizes eliminating waste in all forms.

• Kaizen: A Japanese term meaning 'continuous improvement.' It involves workers suggesting small, incremental improvements to the production process regularly.

• Just-in-Time (JIT): An inventory management system where components arrive at the factory just as they are needed.

  • Benefits: Reduced storage costs and improved cash flow.

  • Risks: Heavy reliance on supplier reliability and efficient transport infrastructure.

• Seven Types of Waste (TIMWOOD): Transportation, Inventory, Motion, Waiting, Over-processing, Over-production, and Defects.

Methods of Production

1. Job Production: One-off items made to order.

   • Pros: High quality; uniqueness.

   • Cons: High unit costs; slow.

2. Batch Production: Products are made in groups; one batch is finished before the next starts.

   • Pros: Flexibility to change products; some economies of scale.

   • Cons: Cleaning/resetting equipment between batches causes downtime.

3. Flow Production: Identical products move continuously along a production line.

   • Pros: Very low unit costs; massive output.

   • Cons: Boring for workers (low motivation); high fixed costs for machinery.

4. Cell Production: The production line is divided into teams (cells) that take responsibility for a complete unit of work.

   • Pros: Improves morale and quality through teamwork.

Technology's Impact on Production Methods

• CAD (Computer-Aided Design): Allows for rapid prototyping and detailed 3D modeling of products.

• CAM (Computer-Aided Manufacture): Computers control automated machinery (lathes, milling machines) to ensure high precision.

• CIM (Computer Integrated Manufacturing): The total integration of CAD and CAM via a central computer system.

• EPOS (Electronic Point of Sale): Scanners at checkouts that track sales and automatically update inventory records.