https://www.washingtonpost.com/news/volokh-conspiracy/wp/2014/02/25/are-private-prisons-better-or-worse-than-public-prisons/ Read the following statement taken from The Washington Post article "Are private prisons better or worse than public prisons?": "Our goal should be to determine the production function for public and private prisons; this is the only way we will find out whether privatization moves us to a higher production possibilities frontier or merely shifts us to a different cost-quality combination on the existing frontier. Realizing this allows us to throw out a lot of studies from the outset." (Volokh, S. 2014) 1. According to this statement, what should be measured in the axes of the production function for public and private prisons? (Max word count: 60) 2. What's the difference between moving to a higher PPF and obtaining a different cost-quality combination on the existing frontier? (Max word count: 100)