Production Possibility Frontier question
Assume that England is producing at a ponit on its PPF. Specify whether the following events will cause a movement to another point along the frontier or a movement to a pont within the frontier.
a) Truck-drivers block interstate highways in protest against lower speed limits for trucks.
b) nurses strike for higher pay and better working condititions
c) a law is passed to prohibi women or men from enterring some occupations.
This is my questions, actually I don't understand what is it effects on PPF and how to explain it.
Please help me to answer it. I really want to do this type of the question better. Thanks