What is a disparity study and what is its purpose? Fri, 09/25/2020 - 12:00am New Orleans has one. Baton Rouge has one. The city of Alexandria has contracted for one. Guess who does NOT have one? Shreveport! But ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today! Read more about What is a disparity study and what is its purpose?