Create a PPF for a country that produces video games and food and faces the increasing opportunity costs. Demonstrate how the PPF changes given the following events.
1. Programmers develop a new programming language that that is much less costly to code and is much more memory-efficient.
2. The country receives immigrants who work both in the food and video game industry.
3. A heat wave and a drought result in a reduction of 10% in the land that is being farmed.
4. A new and better fertilizer is developed