Production and Its Concepts in Managerial Economics | Explained Simply for Exams

What is Production?

Production is the process of using various resources (inputs) to create goods or services (outputs) that satisfy human wants. It transforms raw materials into finished products through tools, labor, machines, etc.

Factors of Production

Factors of production are the basic resources used in the production process.

• Land: All natural resources (soil, minerals, water).

• Labour: Human effort, both physical and mental.

• Capital: Man-made resources like machinery, tools, buildings.

• Entrepreneur: The person who manages, organizes, and takes the risk in the business.

Fixed and Variable Factors

• Fixed Factors are those that remain unchanged in the short run, regardless of output level.
  
  Examples: Land, buildings, machinery.

• Variable Factors are those that change with the level of production.
  
  Examples: Labour, raw materials, electricity.

Production Function

A production function shows how much output can be produced from different combinations of inputs.

Formula:

$$Q = f(L, K)$$Q=f(L,K)

Where:

• $Q$Q = Output

• $L$L = Labour

• $K$K = Capital

It helps in understanding how efficiently inputs are being used and how output can be maximized.

Short-Run vs Long-Run Production Function

Short Run: At least one factor is fixed, usually capital. For example, factory size remains the same, but labor can be increased or decreased.

Long Run: All factors of production are variable. A business can change both factory size and number of workers.

Laws of Production

Law of Variable Proportions (Applicable in Short Run)

When one input (like labor) is increased while others are fixed, output increases but not always at the same rate.

Three Phases:

• Increasing Returns: Output increases more than input.

• Diminishing Returns: Output increases at a slower rate.

• Negative Returns: Output decreases even as input increases.

Laws of Returns to Scale (Applicable in Long Run)

Here, all inputs are increased together.

• Increasing Returns to Scale (IRS): Output increases more than the proportion of inputs.
  
  (e.g., Doubling inputs leads to tripling output)

• Constant Returns to Scale (CSR): Output increases in the same ratio as inputs.
  
  (e.g., Double inputs = Double output)

• Decreasing Returns to Scale (DSR): Output increases less than the proportion of inputs.
  
  (e.g., Double inputs = 1.5 times output)

Economies of Scale

Economies of scale are cost savings that happen when production is done on a larger scale.

Types:

• Internal Economies: Cost savings within the company.
  
  Examples: Bulk buying, better machinery, skilled labor.

• External Economies: Cost savings due to growth of the entire industry.
  
  Example: Improved infrastructure or availability of trained workers in an industrial area.

Diseconomies of Scale

When a business grows too large, it may face problems like poor communication, delay in decisions, and management inefficiencies, which increase per-unit cost.

Economies of Scope

Economies of scope occur when a company reduces cost by producing multiple related products using the same resources.

Example: A dairy company producing both milk and cheese.