Read the following article on the issue of how national parks in the US cope with a large number of visitors. https://www.mnn.com/earth-matters/wilderness-resources/stories/shouldwe-limit-visitors-national-parks
Assume that the National Park Services want to restrict the number of visitors to Yellowstone to 3m visitors a year, which is smaller than the current record at 4.3m. They consider two policies: i. Raising the price of admissions, and ii. Setting a quota that limits the number of visits to 3m. Compare the effect of these two policies on consumer surplus and welfare. Use a graph to show which policy is superior.