The conversation between human and AI assistant.
Under what circumstances would the production possible curve bowed in towards the origin?
What kind of situation could lead to a decreasing marginal rate of transformation?
One example is when there are limited resources that are not perfectly adaptable to produce different goods. For instance, a farmer may have a fixed amount of land that can be used to grow either wheat or corn. At first, it may be easy to switch back and forth between the two crops, but as the farmer produces more of one crop, he may reach a point where it becomes increasingly difficult to produce more of the other crop without giving up a significant amount of the first crop.