Production possibility curve (PPC) is a graphical representation of the maximum possible combination of goods that an economy can produce with the available resources and technology. The production possibility curve is also known as the production possibility frontier (PPF) or the transformation curve. It helps us to understand the opportunity cost of producing one good over the other.

The PPC illustrates the relationship between two goods in terms of their opportunity cost. Opportunity cost is the cost of sacrificing the production of one good to produce the other good. The production possibility curve is concave to the origin, which implies that the opportunity cost of producing one good increases as the economy produces more of that good.
The production possibility curve can be used to analyze the efficiency of an economy. A point inside the PPC indicates that the economy is not producing goods at full capacity, and hence it is inefficient. A point on the PPC indicates that the economy is using all of its resources and technology to produce goods, and it is efficient. A point outside the PPC is unattainable with the current resources and technology.
The production possibility curve can shift outward if there is an increase in resources or technology. For example, an improvement in technology can increase the productivity of labor and shift the production possibility curve outward. On the other hand, the production possibility curve can shift inward if there is a decrease in resources or technology.
PPC economics has several applications in real life. It can be used to analyze the trade-offs between two goods in terms of their opportunity cost. It can be used to determine the best use of resources in an economy. The production possibility curve can also be used to illustrate the benefits of international trade. For example, if a country has a comparative advantage in producing one good, it can trade that good for another good that it is not efficient in producing.
In conclusion, the production possibility curve is a powerful tool for understanding the economic concepts of opportunity cost, efficiency, and trade-offs. PPC economics has several applications in real life, and it helps us to make informed decisions about the use of resources and the production of goods.