Baek, Chung, and Ingyu Lee. “U.S. Stock Market P/E Ratios, Structural Breaks, and Long-Term Stock Returns”. Journal of Business Economics and Management 19, no. 1 (May 3, 2018): 110-123. Accessed November 1, 2024. https://jcem.vgtu.lt/index.php/JBEM/article/view/1602.