The presentation discusses the determinants of demand. It defines demand as consumers' willingness and ability to consume a given good, and notes that quantity demanded generally decreases with price increases and increases with price decreases, following the law of demand. The determinants of demand - factors that can shift the demand curve - are divided into pricing factors like changes in factor prices, and non-pricing factors such as changes in income, tastes, prices of related goods, and expectations. Non-pricing factors are discussed further with examples of how changes can increase or decrease demand.