Final answer:
Deporting migrant workers would result in an inward shift in both ends of the production possibility curve (PPC) since it reduces the labor supply, potentially leading to a less productive economy with higher wages for low-skill labor.
Step-by-step explanation:
If an economy deports migrant workers, the most likely effect on their production possibility curve (PPC) would be an inward shift in both ends. This shift occurs because the deportation of migrant workers, especially if they constitute a significant part of the labor force, would likely reduce the supply of labor. This reduction in labor supply means that the economy may not produce as much of any goods or services as it could before. This is scenically true if a large share of immigrants have relatively low skills because then reducing the number of immigrants would shift the supply curve of low-skill labor back to the left, which would tend to raise the equilibrium wage for low-skill labor. Deporting migrant workers would thus likely lead to a shortage of low-skill workers and a potential increase in wages, influencing economic decisions and possibly leading to an overall decrease in economic production.
However, the question may be ambiguous and the effect may also depend on whether migrant workers are primarily low-skilled or high-skilled. More so, immigrants also contribute to increased demand and may enable labor-intensive production processes. But generally, the departure of a significant number of workers, low-skilled or otherwise, typically reduces the productive capacity of an economy, leading to an inward shift of the PPC.