00:01
Okay, so i'm going to help you answer the questions to this problem.
00:04
And for the first question, an individual's budget constraint can be expressed as c1 plus 1 plus r times c2 equals 10 plus 1 plus r, let me make that a little bit neater, times 10 minus c1.
00:41
This equation represents the total expenditure as an individual can make today and tomorrow, given their income and the interest rate.
00:50
To verify the answer, we can substitute r equals 0 .07 and c2 equals 6 .24.
01:01
And so it would be for c1, c1 plus 1 plus 0 .07 times 6 .24 equals 10 plus 1 plus 0 .07 seven times 10 minus c1 plus 6 .6988.
01:38
And then that equals 0 .93 c1.
01:48
And then 0 .93 c1.
01:56
And then i'm going to put 1 .93 c1 equals 4 .0012 c1, which equals 2 .07.
02:17
Therefore, the maximum an individual can assume today, if they consume 6 .24 tomorrow, is $2 .80.
02:28
The interest rate is $0 .07 is $2 .07...