Final answer:
Behavior and rational thinking are influenced by factors such as social pressure, emotional state, cognitive biases, and environmental factors. Social norms and internal attitudes play a significant role, while behavioral economics shows how emotions can affect economic choices.
Step-by-step explanation:
The forces that determine behavior or contribute to irrational thinking are complex and multifaceted. Among these forces are social pressure, one's emotional state, cognitive biases, and environmental factors. Each of these can significantly impact decision-making processes and behavior. Social roles, norms, and scripts can influence an individual to act in certain ways to conform to societal expectations. Attitudes, beliefs, and cognitive dissonance also play a role internally, affecting a person's outlook and actions. Additionally, behavioral economics highlights the impact of an individual's state of mind on economic decisions, suggesting that emotions and psychological context can lead to seemingly irrational choices. As such, an individual's behavior is the product not only of rational deliberation but also of these various other determinants which may not always align with logical thinking.