Lopez-Pastor, Marcial, Jesus Garcia-Madariaga, Joaquin Sanchez, and José Figueiredo. “Demand Impact for Prices Ending With “9” and ‘0’ in Online and Offline Consumer Goods Retail Trade Channels”. International Review of Management and Marketing 10, no. 6 (November 28, 2020): 58–78. Accessed November 15, 2024. https://econjournals.com./index.php/irmm/article/view/10683.