Innovation diffusion model based on advertising expenditure with change-point.

This research focuses on the role of advertising expenditure in determining the success of a product and its impact on the rate of product sales. We introduce the concept of change-point, which considers fluctuations in the adoption rate due to shifts in advertising strategies and competitor dynamics. The product diffusion models incorporating advertising expenditure and change-points are proposed and validated using two real-world product advertising and sales datasets. The models's accuracy and applicability has been assessed through R 2 (coefficient of determination) and mean square error (MSE). By investigating the relationship between advertising expenditure, change-point, and product sales, this study provides valuable insights for marketing and advertising strategies, aiding in better decision-making processes. [ABSTRACT FROM AUTHOR]