00:01
Once again, welcome to a new problem.
00:04
This time we're dealing with the marginal propensity.
00:12
So we're looking at the marginal propensity to save.
00:20
So when you think about the marginal propensity to save from a graphical standpoint, we have the x -axis and the y -axis.
00:30
The x -axis is your income and the y -axis is your savings.
00:42
And so when you have your income and your savings, we have two positions.
00:47
We have position a and position b.
00:50
So this is position a and this is position b.
00:54
And we can think about the slope.
00:57
Remember this is your x -axis and this is your y -axis.
01:01
And the first position for income is y1 and the second position for income is y2.
01:08
So this is delta y and this is p and r.
01:12
These are two points and this is delta s...