00:01
So here we have a, we're talking about a multiplier process, right? and we know that investment goes down by $100 billion.
00:08
And that sets off the following multiplier chain reaction, right? we get minus $100 billion, minus $75 billion, and then a bunch of other terms, right? we need to figure out what is doing what.
00:22
Well, where does the multiplier come from, right? normally, we have y equals c plus i plus g, and this c function usually looks something like this, right, plus i plus g, right? we've got this little c here.
00:43
So what's happening, this is going down minus 100.
00:47
And on the other side, well, to keep this equation balanced, this means this has got to go down by minus 100.
00:52
But now this is going down by minus 100.
00:57
And now we're going to 75.
00:59
So this number here must be 0 .75...