Can the supply curve shift left while the PPF remains unchanged? For example, if I am a blue berry farmer and I injure my leg, I can no longer pick as many blue berries. So in the blue berry market, the supply curve for any price would shift to the left.
The number of blue berries I have available to pick hasn't changed, therefore the PPF NOT shift but instead I wouldn't be producing along the PPF but inside the PPF. So, the supply curve has shifted left, and my position on the PPF is on the inside of the curve, but the PPF itself hasn't shifted. Is that correct?
If so, my follow up question of the same topic is: is it true that the PPF does NOT concern itself with the method of using resources, just the resources themselves? E.g. if a factory burns down but the stock of resources that goes through the factory remains unaffected, the supply curve would shift and the PPF would remain unchanged. Correct?