Increasing the production of one good always results in a constant opportunity cost, regardless of how much of that good is produced compared to others.

Opportunity cost is what you give up when you choose to produce one good over another. When we say that increasing the production of one good results in a constant opportunity cost, it means that for every additional unit of that good produced, the amount of the other good you have to give up stays the same. This idea is often illustrated using a Production Possibility Curve (PPC), which shows the trade-offs between two goods. For example, if a factory can produce either 10 cars or 30 bikes, and it decides to make one more car, it might have to give up making 3 bikes every time, regardless of how many cars or bikes it has already produced. However, in real life, opportunity costs can change as resources are not always equally good for producing both goods, leading to increasing opportunity costs as production shifts.