00:01
So here we're talking elasticity.
00:02
We know that the wage is going from 50 to 65.
00:07
And we know that the associated quantity of hours, let's call that h, is going from 7 to 10.
00:18
Right.
00:19
So the elasticity here is normally given as the percentage change quantity over the percentage change in the price.
00:26
Which of these is which? well, the wage is the price, right? that's the thing that's changing.
00:32
The hours is his reaction.
00:34
It's how he chooses to react.
00:36
So it's a little bit different than the elasticity of demand, but the idea is still sort of effectively the same, right? we want to think about how much the quantity changes in response to a change in price.
00:49
So this is going to be, in our example, the percentage change in hours over the percentage change in the wage.
00:56
Now, we need to do.
00:57
This with a midpoint, right? so we want to get the midpoint for each of these things...