Final answer:
In a constant cost industry like beef production, a decrease in the price of beef or cattle feed will not cause a change in the long-run supply of beef. However, an increase in the price of cattle feed or the cost of transporting cattle to market can cause a change in the long-run supply of beef.
Step-by-step explanation:
In a constant cost industry like beef production, the long-run supply of beef is not affected by a decrease in the price of beef or a decrease in the price of cattle feed. However, an increase in the price of cattle feed or an increase in the cost of transporting cattle to market can cause a change in the long-run supply of beef.