...beef. In this case therefore, chicken is a substitute for beef and, or it can be said that beef is a substitute for chicken.
Products are said to be substitutes if the increase in price of one product leads to increase in demand for a related product, and vice versa. For example, if the price of beef increases, the demand for chicken will increase as more people will find chicken affordable as compared to beef. On the other hand, if the price of beef decreases, the demand for chicken would reduce as more people will find beef to be affordable.
Lindeman, J. B. (2002). Microeconomics. Hauppauge, NY: Barrons.... Elasti Paper Complementary products are those that are in most cases used together....