With reference to Article 4, explain why "The more pizza people ate, the less they enjoyed it".

Article 4 + - The Economists Who Studied All-You-Can-Eat Buffets (The Atlantic, 27 Dec 2014)2 Buffets are now big businesses, particularly in Las Vegas. The buffets in Vegas are no longer the dollar bargains they once were in the late 1950s. They're fancy productions with Kobe beef and king crab legs that can cost over $50. ~ New research shows that paying that much for a buffet might actually make the food taste better Three researchers did an all you can eat (AYCE) buffet field experiment to test whether the cost of an AYCE buffet affected how much diners enjoyed it. They conducted their research at an Italian AYCE buffet in New York, and over the course of two weeks 139 participants were either offered a flier for $8 buffet or a $4 buffet (both had the same food). Those who paid $8 rated the pizza 11 percent tastier than those who paid $4. Moreover, the latter group suffered from greater diminishing returns-each additional slice of pizza tasted worse than that of the $8 group. ~ - Question 4: (10 marks) ~ With reference to Article 4, explain why "The more pizza people ate, the less they enjoyed it". ~