Heuristics (behavioral economics) is the study and identification of mental shortcuts, rules of thumb, or cognitive strategies that individuals employ to simplify decision-making processes, particularly under conditions of uncertainty, complexity, or limited information. These cognitive mechanisms, while often efficient and adaptive, represent deviations from the normative assumptions of perfect rationality found in traditional economic models. Research in behavioral economics investigates how the reliance on these heuristics can lead to systematic cognitive biases and predictable errors in judgment, influencing economic behaviors, financial decisions (as explored in behavioral finance), consumer choices relevant to media marketing, and strategic considerations in areas like network optimization. The concept is central to understanding observed discrepancies between actual human decision-making and idealized rational choice, providing insights into the psychological underpinnings of economic phenomena.