Final answer:
The law of increasing opportunity cost states that as a country specializes more in the production of one good, the opportunity cost of producing additional units of that good increases.
Step-by-step explanation:
The law of increasing opportunity cost states that as a country specializes more in the production of one good, the opportunity cost of producing additional units of that good increases. This happens because resources are not equally suited to produce all goods and services. When a country focuses more on producing a specific good, it needs to allocate resources away from other goods, which leads to a higher opportunity cost.