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BANKERS TUTORIAL · RBI · TOPIC & REVISION GUIDE

Topic guide: Demand and supply shocks: diagnose before concluding

Demand and supply shocks affect prices and output through different mechanisms. A demand expansion can raise both activity and prices, while an adverse supply shock can raise costs and prices even as output weakens.

01 / 03Learn with a clear direction

2 min read Original learning material · Prepared 14 Oct 2026

This is an independent topic guide, not the official syllabus. Compare it with the current paper outline and rules published by the examination authority.

01 / UNDERSTANDING

Learning objectives

Cover demand shifts, supply shifts, cost pressures and comparative statics, including how mixed shocks complicate diagnosis. Compare predicted quantities as well as prices across paired shock diagrams. Your practical tasks are to identify the initial demand or supply disturbance and state which other conditions are held fixed. These conceptual objectives are a study framework, not an official question allocation. Demonstrate the distinction with a fresh worked case, including the assumptions that make the answer valid.

02 / UNDERSTANDING

The concept in context

Demand and supply shocks affect prices and output through different mechanisms. A demand expansion can raise both activity and prices, while an adverse supply shock can raise costs and prices even as output weakens. Identify which curve shifts first and state the assumptions about the other side of the market.

03 / UNDERSTANDING

A worked learning case

A fictional transport disruption reduces the amount of vegetables reaching a city. With demand initially unchanged, the available supply falls, market prices rise and traded quantity falls. A different case involving a festival-driven increase in demand could raise both prices and quantities. The same direction of prices therefore need not identify the underlying cause.

ORIGINAL EDUCATIONAL PRACTICE

Try it before you check.

With unchanged demand, what combination is consistent with the illustrated adverse supply shock?

Show the answer and reasoning

Higher prices and lower traded quantity.

The disruption reduces supply at each price. With the stated demand assumption, the new market outcome generally combines a higher price with lower quantity. This differs from a demand expansion, which can raise both. The reasoning is a simplified comparative-statics exercise rather than a complete explanation of any actual food-price episode.

Two traps to watch for.

  • Inferring excess demand solely from a price increase.
  • Assuming supply shocks affect prices without affecting quantities.

YOUR TOPIC-SPECIFIC LEARNING MAP

Your revision map

  1. Identify the initial demand or supply disturbance.

  2. State which other conditions are held fixed.

  3. Compare predicted price and quantity directions together.

Explain the idea, apply it to a new situation, then check what changed in your reasoning.

BANKERS TUTORIAL · SOURCE NOTES

Keep the source alongside your notes.

Official links provide subject context and authoritative reference material. This guide’s explanation, scenario and question are original Bankers Tutorial learning content.

  1. ncert.nic.in https://ncert.nic.in/textbook.php?leec1=ps-6
  2. rbi.org.in https://rbi.org.in/scripts/PublicationsView.aspx?Id=18086

For RBI preparation, check the current official notice before relying on changing dates, rules or examination requirements.

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