# Price elasticity

9 videos

You're familiar with supply and demand curves already. In this tutorial we'll explore what implications their steepness (or lack of) implies. Price elasticity is a measure of how sensitive something is to price.

### More on elasticity of demand

VIDEO
6:01 minutes

Looking a bit deeper at why elasticity changes despite having a linear demand curve

### Perfect inelasticity and perfect elasticity of demand

VIDEO
9:41 minutes

Extreme examples of price elasticity of demand

### Constant unit elasticity

VIDEO
4:37 minutes

What a demand curve with constant unit elasticity would look like

### Total revenue and elasticity

VIDEO
11:41 minutes

Thinking about how total revenue and elasticity are related

### More on total revenue and elasticity

VIDEO
8:25 minutes

Clarification on the relationship between total revenue and elasticity

### Cross elasticity of demand

VIDEO
11:20 minutes

Price of one good impacting quantity demanded of another

### Elasticity and strange percent changes

VIDEO
6:54 minutes

Why we calculate percent changes in a strange way when calculating elasticities