Production Function

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Questions and Answers

What does a production function primarily illustrate?

  • The marketing strategies for selling goods.
  • The relationship between the quantity of inputs used and the quantity of output produced. (correct)
  • The financial capital required for production.
  • The organizational structure of a firm.

How does technological advancement typically affect a firm's production function?

  • It leads to a new production function, potentially increasing output with the same inputs. (correct)
  • It only affects the firm's marketing strategies.
  • It has no impact on the production function.
  • It decreases the firm's output capacity.

In the production function $Q = f(Ld, L, C, O)$, what does 'C' represent?

  • Contracts
  • Cost
  • Capital (correct)
  • Consumption

What additional factors are emphasized by modern managerial economists in the production function?

<p>Quality of technology and management (B)</p> Signup and view all the answers

In the Cobb-Douglas production function, what does the function primarily apply to?

<p>The whole of manufacturing in a country (D)</p> Signup and view all the answers

What is a key characteristic of the short run in the context of production?

<p>At least one input is fixed. (C)</p> Signup and view all the answers

Which of the following statements best describes the long run in production?

<p>A period long enough for all inputs to become variable. (A)</p> Signup and view all the answers

What does the 'law of variable proportions' primarily address?

<p>The relationship between input and output when one input is varied while others are constant (C)</p> Signup and view all the answers

What is a key assumption underlying the law of variable proportions?

<p>Only one factor is variable, while others are held constant. (A)</p> Signup and view all the answers

During the first stage of the law of variable proportions, what typically happens to the marginal product?

<p>It goes on increasing. (B)</p> Signup and view all the answers

At which point does the first stage of the law of variable proportions typically end?

<p>When the marginal product cuts the average product at the maximum. (A)</p> Signup and view all the answers

What is a characteristic of the second stage of the law of variable proportions?

<p>Marginal product goes on diminishing until it becomes zero. (A)</p> Signup and view all the answers

In the third stage of the law of variable proportions, what happens to the marginal product?

<p>It tends to be negative. (B)</p> Signup and view all the answers

What does the 'law of returns to scale' describe?

<p>The relationship between outputs and scale of inputs in the long-run when all inputs are increased in the same proportion (A)</p> Signup and view all the answers

Which assumption is NOT part of the law of returns to scale?

<p>Enterprise is also variable. (A)</p> Signup and view all the answers

What characterizes 'increasing returns to scale'?

<p>Output increases more than proportionally with input increases. (D)</p> Signup and view all the answers

Which of the following is a cause of increasing returns to scale?

<p>Indivisibility of factors (C)</p> Signup and view all the answers

What defines 'constant returns to scale'?

<p>Output increases proportionally with input increases. (B)</p> Signup and view all the answers

Which of the following can cause constant returns to scale?

<p>Internal economies and diseconomies (A)</p> Signup and view all the answers

What is a characteristic of 'diminishing returns to scale'?

<p>Output increases less than proportionally with input increases. (B)</p> Signup and view all the answers

Which of the following can lead to diminishing returns to scale?

<p>Higher factor prices (A)</p> Signup and view all the answers

What does 'Cost' refer to in economics?

<p>The total money expenditure incurred on payment of all the factors of production (D)</p> Signup and view all the answers

Which of the following is an example of 'Opportunity cost'?

<p>The costs that must be given up to obtain some item (D)</p> Signup and view all the answers

What is the primary difference between accounting costs and economic costs?

<p>Economic costs include opportunity costs, while accounting costs typically do not. (C)</p> Signup and view all the answers

How are 'explicit costs' best described?

<p>Input costs that require an outlay of money by the firm (C)</p> Signup and view all the answers

What is an example of an 'Implicit cost'?

<p>Opportunity cost of entrepreneur's own services (B)</p> Signup and view all the answers

What is the definition of 'Fixed costs'?

<p>Costs that do not vary with the quantity of output produced. (A)</p> Signup and view all the answers

How are 'Variable costs' best described?

<p>Costs that change as the firm alters the quantity of output produced (A)</p> Signup and view all the answers

What is 'Marginal cost'?

<p>The increase in total cost that arises from an extra unit of production (B)</p> Signup and view all the answers

How is 'Total cost' calculated?

<p>By summing fixed and variable costs (D)</p> Signup and view all the answers

What does 'Total revenue' represent?

<p>The amount a firm receives for the sale of its output (A)</p> Signup and view all the answers

What is 'Profit'?

<p>Total revenue minus total cost (A)</p> Signup and view all the answers

What characterizes the 'Break-even Point'?

<p>The point where total costs equal total revenues (B)</p> Signup and view all the answers

In break-even analysis, how is the break-even point typically represented on a chart?

<p>The point where the total cost line intersects the total revenue line. (A)</p> Signup and view all the answers

Flashcards

Production Function

The relationship between the quantity of inputs used and the quantity of output produced.

Short Run

A period where at least one input amount is fixed.

Long Run

A period sufficient for all inputs to be variable.

Production function formula

Q = f (Ld, L, C, O). Q = output. Ld = Land. L = Labour. C = Capital. O = Organisation.

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Cobb-Douglas function

A production function: Q = k* La * C(1-a). Q = quantity produced, L = Labour, C = Capital, k, a are positive constants

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Marginal Product

The increase in output from one additional unit of input.

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Diminishing marginal product

As you add more of one input with others constant, the marginal product decreases.

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Law of Variable Proportions

If one variable quantity is changed while others stay constant, output won't respond proportionately.

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Variable Proportions Assumptions

Only one factor changes, others are constant, units are homogeneous, technology is unchanged.

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Marginal Product Increasing

Marginal product increases and total product increases at an increasing rate.

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Marginal Zero, Total Max

Total product is highest when marginal product is zero.

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Negative Marginal Product

Total product decreases when marginal product is negative.

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Marginal Below Average

The average product declines if marginal product drops below it.

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First Stage of Production

The stage when Marginal product increases, and average product also increases.

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Cause of stage one increasing returns?

Factors are not easily divided and capacity is under-utilized.

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Second Stage of Production

The stage when marginal product decreases to zero.

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Third Stage of Production

The stage when additional inputs cause total production to fall.

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Law of Returns to Scale

The relation between inputs and outputs when all inputs change proportionally.

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Increasing Returns to Scale

Output increases more than the proportional increase in inputs.

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What causes increasing returns?

Specialization and division of labor and internal economies.

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What causes constant returns to scale?

Internal economies and diseconomies.

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Constant Returns to Scale

Output increases proportionally with the increase in inputs.

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Diminishing Returns to Scale

Output increases less than the proportional increase in inputs.

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Reason of diminishing returns.

Factors are not as productive.

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Cost Definition

Total money expenditure for factors in production.

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Opportunity costs

Costs must be given up to get something else.

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Explicit costs

Costs with money outlay by the firm.

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Implicit costs

Costs without money outlay by the firm.

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Fixed costs

Costs that do not vary with output quantity.

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Variable costs

Costs that change with output quantity.

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Marginal cost

Increase in total cost from one more unit produced.

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Total Cost

Sum of fixed and variable costs.

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Total revenue

Amount received from selling output.

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Profit Definition

Total revenue less total cost.

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Break-even Point

Point where total costs equal total revenues.

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Study Notes

Production Function

  • Relationship between quantity of input and quantity of output.
  • Functional relationship exists between physical inputs and physical output of a firm.
  • Production Function includes minimum quantity of steel, color, labor, machine-time, and electricity needed to makes 50 steel chairs
  • Production function consists of the maximum number of chairs that can be produced with given quantities of inputs

Technology and the Production Function

  • Largely determined by technology.
  • Production function changes with technology improvements which creates a new production function.

Mathematical Expression

  • Q = f (Ld, L, C, O)
  • Q represents output.
  • Ld represents Land.
  • L represents Labour.
  • C represents Capital.
  • O represents Organisation.

Modern Managerial Factors

  • Managerial economists emphasize quality of technology and quality of management as additional factors.
  • Q = f (Ld, L, C, M, T)
  • M represents Management.
  • T represents Technology.

Linear Homogeneous Function

  • Also known as the Cobb-Douglas Function.
  • Profounded by Paul H. Douglas and C.W. Cobb.
  • Applies to manufacturing in the country and not to individual firms.
  • Output is manufacturing production, with labor and capital being the inputs.
  • Cobb-Douglas function is Q = k* La * C(1-a)
    • Q is quantity produced
    • L is Labour
    • C is Capital
    • k and a are positive constants
  • The production function works out for the American economy is Q = 1.01* L75 * C25

Short Run vs. Long Run

  • Short run is a brief time where at least one input is fixed, featuring both fixed and variable factors.
  • Long run is is a period that is sufficient for all inputs to be variable for an individual firm.

Marginal Product

  • Increase in quantity of output from one additional unit of input.
  • The marginal product declines because the number of workers increases.
  • This property is called diminishing marginal product

Law of Variable Proportions

  • A short run function that is also called the law of non-proportional output.
  • If quantity of one variable is varied and the quantities of other variable factors are kept constant, then the output would not respond in a proportionate manner.
  • Production increases at an increasing rate initially, then at a diminishing rate.
  • Relationship between input and output is not constant during production.

Assumptions for the Law of Variable Proportions

  • Only one factor is variable while others are held constant.
  • Units of the variable factor are homogeneous.
  • There is no change in technology.
  • Possible to vary the proportions in which different inputs are combined.
  • Assumes a short-run situation since factors are variable in the long-run.
  • Product is measured in physical units i.e in quintals, tonnes, etc.

Marginal, Average, and Total Product Relationships

  • When marginal product increases, total product increases at an increasing rate.
  • When marginal product is zero, total product is at its maximum.
  • When marginal product becomes negative, total product starts falling.
  • Average product rises as long as the marginal product is above it.
  • Average product starts falling when marginal product is below it.
  • The marginal product curve cuts the average product curve at its maximum.

Stages of Production

First Stage

  • Marginal and average products are increasing.
  • Stage ends when marginal product cuts average product at its maximum.
  • The first stage indicates increasing returns.
  • The cause of increasing returns is the indivisibility of factors of production
  • Indivisibility of factors of production as factors of production are not subject to division.
  • Capacity can be under-utilized

Second Stage

  • Marginal product diminishes until zero.
  • Happens due to diseconomies.
  • Diseconomies means Under-utilization initially transitions to optimum point and output increases but at a diminishing rate.
  • Example: Fishing in the sea

Third Stage

  • Additional variable factors lead to a fall in total production.
  • Marginal product tends to be negative.
  • Excessive variable factors hurt the efficiency of a fixed factor.
  • This stage is theoretical, and no producer would want to be in it.

Law of Returns to Scale

  • The relationship as outputs and scale of inputs in the long-run when all the inputs are increased in the same proportion
  • Returns to scale is the relationship between changes in output and proportionate changes in all factors of production
  • A firm increases its scale of production (long-run change in demand) by using more space, machines, and labor.
  • Assumes all inputs are variable but enterprise is fixed.
  • This law assumes that a worker works with given tools and implements
  • Technological changes are absent.
  • There is perfect competition.
  • Product is measured in quantities.

Increasing Returns to Scale

  • Increase in total output > proportional increase in all inputs.
  • Causes
    • Indivisibility of Factors
    • Specialization and Division of Labour
    • Internal Economies.
    • External Economies

Constant Returns to Scale

  • Increase in total output = increase in inputs.
  • Causes
    • Internal Economies and Diseconomies
    • External Economies and Diseconomies
    • Divisible Factors

Diminishing Returns to Scale

  • Increase in output < increase in inputs
  • Causes
    • Indivisible factors become inefficient. - Business becomes unwieldy.
    • Supervision/coordination problems.
    • Higher factor prices.

Concept of Cost

  • Total money expenditure to pay all the factors of production for their participation.
  • Production requires different factors to be hired, involving production costs.
  • Cost is in terms of money for understanding and comparison.
  • Interpretations of cost can be opportunity cost, real cost and money cost of production

Types of Costs

Accounting Costs

  • Costs associated with producing.

Economic Costs

  • The costs of producing a good along with opportunity costs.

Opportunity Costs

  • Sacrifices made to obtain an item.
  • If a firm is producing Computers then the Accounting costs are the costs incurred for producing the computers. Economic costs include the cost of producing the computers as well as opportunity cost. If this firm could lease its office and the plant for say Rs. 100,000 then that is the opportunity cost

Explicit costs

  • Input costs requiring money outlay by firm.
  • Includes all money expenditure incurred by a firm in the process of production
  • Money spent on fuels, raw materials, power, advertising and transportation

Implicit costs

  • Input costs not requiring money outlay by firm.
  • Costs not included by accounting authority.
  • e.g., opportunity cost of entrepreneur's services and/or cost of land belonging to him

Fixed costs

  • Doesn't vary with output quantity.
  • Incurred even if the firm produces nothing.

Variable costs

  • Changes as firm alters output quantity.

Marginal cost

  • Increase in total cost from extra unit of production.

Total cost

  • Sum of fixed and variable costs.

Total revenue

  • Amount a firm receives from selling its output.

Profit

  • Total revenue - total cost.

Break-Even Point

  • No-profit, no-loss point where total costs equal total revenues.

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