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Production and Costs

CBSE · Class 12 · Economics

Quick revision notes for Production and Costs — CBSE Class 12 Economics. Key concepts, formulas, and definitions for last-minute revision.

42 questions74 flashcards5 concepts

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A flowchart illustrating the transformation of various inputs (labor, capital, raw materials) into an output by a firm, highlighting the payment for inputs (cost), sale of output (revenue), and the re
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Key Topics to Revise

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1. Production Function and Isoquants

  • Production function gives the maximum quantity of output for different combinations of inputs.
  • It is defined for a given technology. If technology improves, a new production function comes into existence.
  • A firm can produce only if both inputs are available. If either input is zero, output is zero.
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2. Short Run, Long Run, TP, AP and MP

  • In the short run, at least one factor of production cannot be varied and therefore remains fixed.
  • In the long run, all factors of production can be varied. There is no fixed factor.
  • Short run and long run are defined by whether all inputs can be varied, not by calendar time.
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3. Law of Variable Proportions and Curve Shapes

  • The law of variable proportions states that marginal product initially rises with employment level and then falls after a certain point.
  • It is also called the law of diminishing marginal product.
  • This happens because the ratio of fixed to variable factors changes as more of the variable input is added.
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4. Returns to Scale and Cobb-Douglas Production Function

  • Returns to scale apply only in the long run because both inputs must change together.
  • When all inputs increase in the same proportion and output increases in the same proportion, the production function shows constant returns to scale.
  • When output increases by a larger proportion than inputs, the production function shows increasing returns to scale.

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Full Notes

Key Concepts

A firm acquires inputs such asA production function is the relationshipAn isoquant is the setIn the short run at leastTotal product is the output obtained

Frequently Asked Questions

What are the important topics in Production and Costs for CBSE Class 12 Economics?
Key topics in Production and Costs include Production and Costs - Complete Concept Map, Relationship Between MP and TP: Correcting the Most Critical Misconception, Production and Costs – Complete Concept Map. These are the concepts CBSE Class 12 examiners draw on most — study them first, then practise related questions.
How to score full marks in Production and Costs — CBSE Class 12 Economics?
Understand the core concepts first, then work through the 42 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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