Answer:
0.76%
Explanation:
Firstly we write out the production function to be
Y = K^0.34L^0.42.
So if we have inputs that are increased by 1%, we will now have a new production function which is
Y = (K + 0.01 of K)^0.34 (L + 0.01 of L)^0.42
We write this in terms of growth rate
The Growth rate of Y = 0.34 x the growth rate of K + 0.42 x the growth rate of L
This gives us the Growth rate of Y = 0.34 x 1% + 0.42 x 1%
= 0.34+0.42
= 0.76%