00:01
In this question, it is given that consider a form with production function q which is equals to 2 l raised to 1 over 4, k raised to 1 over 4 where r and r is equals to w and they are equals to half.
00:18
It's long run cost function.
00:20
Okay, so we have here long run cost function given by c equals to 0 .5 times k plus 0 .5 times l plus 1.
00:33
We need to write down what is long run production q as a function of l.
00:41
Okay, so we have to find out what is long run production function.
00:48
Production, so let's see how we are going to do this.
00:53
For this, we first need, we first consider the optimal state.
00:59
At optimal state, we know that this ratio mpl over mpk, it is equals to pl over pk.
01:16
Correct, and this is nothing but 2 times 1 over 4, l raised to minus 3 over 4 times k raised to 1 over 4.
01:27
Okay, this is just the derivative of q with respect to l.
01:33
Then we take the derivative mpk is nothing but derivative with respect to k.
01:38
So, it will be 2 times 1 over 4, l raised to 1 over 4 and k will be raised to minus 3 over 4...