1. Why does Bernie sell more hamburgers when they are priced at $1.00 than $5.00?
Bernie sells more hamburgers when he prices them at $1.00 instead of $5.00 because of the demand schedule. The demand schedule is what people are willing and able to pay for a product at a certain price. In the consumer's mind when the hamburger is priced at $5.00 they decide it's not worth it to them but when Bernie lowers the price to $1.00 they suddenly feel as if it is a great option and a great deal. It's all based on the law of demand, as price goes down, quantity demanded goes up.
2. Why does Bernie sell more hamburgers when they are priced at $5.00 than Sally's sells salads at the same price?
Bernie sells more hamburgers then Sally sells salads when they are both price for $5.00 because of the determinants of demand. People's tastes and preferences really contribute to the fact that Bernie is selling more hamburgers then Sally is selling salads. If both are being sold for the same price and the consumer feels as if the hamburgers from Bernie is a better deal then the salads from Sally then they will end up getting the hamburgers from Bernie.
3. Discuss one demand factor that can lead to more entree sales for both Bernie's and Sally's?
For both Bernie and Sally they should know the law of demand, as price goes down then quantity demanded goes up. If both Bernie and Sally lower their prices further then they can expect their sales to increase. Bernie and Sally should understand that if an item is not a necessity then it will be more price sensitive because consumers aren't hesitant to substitute.
Extra Credit
If demand is elastic, how would a raise in price on a particular good affect total revenue? Discuss one factor that could affect elasticity.
If demand is elastic which means that it is price sensitive then a raise in price on a particular good could affect the total revenue either way. By raising the price on a particular good, there will be a loss of consumers buying your item but if that loss is made up for in money by the price difference then it is worth it. The problem is that it is a very thin line, you need to calculate how many products are sold at that particular price with the price of the product to make sure that you are not turning your clients away in search for a substitute. If an item is a necessity then it won't be elastic because it is needed no matter the price, but if an item has many substitutes then it will be more elastic.