What behavior must exist before price can exist at all?Every market price begins with people making decisions.Buyers and sellers assess value, consider terms, respond to changing circumstances, and decide whether to act. Their interactions produce the transactions and prices we observe-but those prices do not tell us everything about the decisions that produced them.Behavioral Auction Model: A First-Principles Framework for Understanding Market Behavior starts there.Rather than beginning with charts, indicators, or assumptions about why price moved, Tracy Jardim works backward from the basic mechanics of voluntary exchange to examine the behavioral relationships underlying market activity.BAM explores: - how participants assign value independently- why agreement on price does not require agreement on value- how compatibility, negotiation, and exchange relate- how control changes through exchange- how information and circumstances can influence participant decisions- how behavioral responses differ from observable market outcomes- what transaction prices actually establish-and what they cannot tell us- why similar price movements may arise from different combinations of participant behaviorBAM does not present a trading system or promise to predict the next market move. It provides a foundation for asking a more fundamental question: What must have happened among market participants for the activity we observe to exist at all?For investors, traders, students of markets, and readers interested in understanding price from first principles, Behavioral Auction Model offers a structured way to look beneath the chart-and examine the human decisions that make the auction possible.