Yes you're right. Thanks for correcting me.

S/Y = 1/2 or S=1/2 Y then dS/dY = 1/2

On 27 Apr 2015 21:29, "Kannot [via Discussion forum]" <

[hidden email]> wrote:

Forgive me if I am mistaken but, although the answer is correct would it not be more accurate to say that:

Savings = Amount saved by workers + Amount saved by capitalists = S

S = 0x(1/4)x(Y) + (2/3)x(3/4)xY

S = (1/2)Y

and that :

dS/dY = MPS = 1/2

Since technically S/Y = APS (which is not necessarily equal to MPS)?

Although in this case S/Y = APS = 1/2 = MPS