VERVLIET, Tobias. The Lerner Index as a Measure of Market Power of U.S. Credit Unions in the Absence of Profit Maximization. Student Undergraduate Research E-journal!, [S. l.], v. 1, 2015. Disponível em: https://journals.open.tudelft.nl/sure/article/view/1063. Acesso em: 25 jul. 2024.