Although I have no connection to Ole Miss, I think that it would not be a wise option for an economics major unless attending on a full tuition & fees plus scholarship.
The University of Mississippi is great for certain majors–especially accounting & data analytics–but not so great for other majors including economics. But, if on full scholarship & in the Honors College & double majoring, then it is may be a wise choice of school.
P.S. It also depends upon one’s career goals. For example: If seeking a Wall Street Investment Banking (IB) position or work as a management consultant (MC) with a prestigious firm based on earning an economics degree at Ole Miss, then you should look elsewhere.
If, however, you want to go to law school after college but would like to major in economics in a non-cutthroat environment, the Ole Miss would be fine.
At some elite colleges & universities, economics is a sought after major &, therefore, schools sometimes use weed-out courses to eliminate the weak students. There is value in a degree in economics so if you want to avoid intense competition while earning a degree in econ, then Ole Miss might be fine–especially if on a full tuition scholarship.