Assume that beef and chicken are substitutes. Given a downward-sloping demand curve for beef, a fall in beef prices will result in Group of answer choices a decrease in the demand for chicken. an increase in the demand for chicken. an inward shift of the supply curve for both beef and chicken. an outward shift of the supply curve for both beef and chicken.

Which of the following best explains why online retail companies have an advantage over regular stores? a. their employees make less money because they mostly perform unskilled tasks. b. they are able to keep distribution costs low by negotiating deals with shipping companies. c. their transactions require expensive state-of-the-art technological devices. d. they have a larger number of potential customers because people anywhere can buy from them.