PPF shifting right/outwards
Anything to increase FOP
investment in capital (plants and machinery)
discovery of new materials
Immigration of skilled workers
improved education, training and healthcare to lift labour productivity
innovations that increase output per unit and reduce resource wastage
PPf shifting left/inwards
Anything to decreases FOP
Damaging effects of natural disasters such as droughts, tsunamis, floods and earthquakes
destruction of FOP caused by a civil war and other forms of conflict that last few many years
large scale of emigration
a trend decline in the productivity caused by a persistent economic recession
there has been an improvement in Q2 of FOP that only benefit good x meaning that they have specialised in that area
Specialisation:
improvements in technology
new techniques
better trained/skilled labour