In the digital economy, consumers are constantly exposed to a wide range of online products, services, and marketing tactics that influence their purchasing decisions. Understanding the psychological processes behind consumer behavior is critical for businesses aiming to optimize their marketing strategies in the digital landscape. This paper explores the psychological factors that influence consumer decision-making in the context of the digital economy, focusing on cognitive biases, social influences, and the role of emotions. It also discusses the impact of digital technologies, such as artificial intelligence (AI), social media, and e-commerce platforms, on consumer behavior. The findings suggest that digital technologies significantly shape consumer decisions, often leading to decisions that may not align with rational economic models of behavior.