Understanding market failure: Volatile prices and externality diagrams

Overview

Why volatile prices are a market failure for producers, consumers and investors, and how to read the MSC, MPC, MSB and MPB curves on externality diagrams.

What you need to know

Answer each one before you reveal it.

Questions from this subtopic

Each one with the model answer underneath.

1. 1

   Why are volatile prices a form of market failure?

   Model answer

   Price instability creates uncertainty, discourages investment, and leads to misallocation of resources.

2. 2

   How do price fluctuations affect economic agents?

   Model answer

   Price fluctuations create uncertainty for producers and consumers.

3. 3

   How do volatile prices affect investment decisions?

   Model answer

   Investment decisions are distorted because firms cannot plan effectively under price uncertainty.

4. 4

   Why can producers and consumers not plan effectively when prices are volatile?

   Model answer

   Because price instability creates uncertainty about future revenues and costs.

5. 5

   What is the resource allocation consequence of volatile prices?

   Model answer

   Resources are misallocated.

6. 6

   With external costs of production, what does the supply curve reflect?

   Model answer

   The supply curve reflects only private costs, not the full social costs.

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