This document discusses several models of consumer buying behavior: 1. The Economic Model assumes consumers allocate expenditures to maximize utility given prices and limited income. It is criticized for not explaining actual consumer behavior. 2. The Sociological Model views consumers as influenced by and influencing society. Market segmentation can target common patterns within groups. 3. The Learning Model explains how consumers learn responses to new marketing situations from past experiences, aiding strategies. The document then discusses motives for buying, including emotional, rational, and patronage motives like fashion, economy, and store loyalty.