Consider an economy that produces two goods F and M with a single factor of production, labor, denoted by L. The total labor force of the economy is given by L?. While good F exhibits constant returns to scale, production of good M exhibits increasing returns to scale. The production functions are:

Show that the PPF for this economy is ??bowed in?? towards the origin.

F = BL;B>0 M = a(L)L ; a'>0