Liyan Shi, an assistant professor of economics in the Tepper School of Business at Carnegie Mellon University, argued in a study published in Econometrica that noncompete agreements harm the economy. She suggested that a near ban of these noncompete agreements may be the best policy. Liyan Shi, an assistant professor of economics in the Tepper School of Business at Carnegie Mellon University, argued in a study published in Econometrica that noncompete agreements harm the economy. She suggested that a near ban of these noncompete agreements may be the best policy. Economics & Business Phys.org – latest science and technology news stories