500
1. The amount of resources in an economy is fixed, but these resources can be transferred from one use to another;
2. With the help of given resources, only two goods can be produced;
3. The resources are fully and efficiently utilised;
4. Resources are not equally efficient in production of all products. So, when resources are transferred from production of one good to another, the productivity decreases.
What is the 4 basic assumption for production possibilities curve?