Final answer:
Due to an outbreak of avian flu reducing the labor force, the PPF for Yosemite would shift inward, representing a decrease in the country's production capacity for both agricultural and capital goods.
Step-by-step explanation:
The Production Possibilities Frontier (PPF) is an economic model representing the trade-offs a society faces when deciding how to allocate its finite resources between different possible goods and services. If the fictional country of Yosemite experiences a breakout of avian flu that sickens millions of workers, the PPF would shift inward.
This is because Yosemite's labor force, a key resource, is significantly reduced, impacting its ability to produce both agricultural and capital goods. To illustrate this effect on a graph, both endpoints of the PPF curve would need to be dragged downwards or towards the origin, representing a decrease in the maximum quantity of both sorghum and microprocessors that can be produced. This shift demonstrates a reduction in productive efficiency and capacity.