Many demographers predict that the us will have zero population growth in the 21st century, in contrast to a population growth of about 1% in the 20th century. using the growth model and assuming that there is no technological progress, how will this change affect the long run level of output per worker y/l?
answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.
p = perimeter
l = length
p = 2l + 2x
p = 2(l+x) < ==== perimeter of the base of the box.
where is the graph? need more info