If an economy is working at a point left to PPF curve it shows that ______.
If an economy is working at a point left to PPF curve it shows that the economy is working at less than the full employment level. The PPC shifts towards the left, when there is a technological degradation and/or decrease in resources with respect to both the goods. For example, destruction of resources in an earthquake will reduce the productive capacity and as a result, PPF shifts towards the left.