Revenue Strategies and Operating Expenses

 Discuss the ways in which sport’s revenue-raising strategies have changed over the last 50 years. What might explain these changes? Distinguish between, and give three examples of, operating revenue and operating expenses as they pertain to sport finance.  Your initial post should be at least 350 words in length ....   the book is Fried, G., DeSchriver, T. and Mondello, M., n.d. Sport finance.