According to a Wall Street Journal article, many restaurant chains, including McDonald's and Chick-fil-A, have begun serving only chickens that were raised without being fed antibiotics. Using this method of raising chickens increases their cost. Suppose that consumers react to the news of restaurants selling antibiotic-free chicken sandwiches by increasing their demand for the sandwiches. Can you tell whether economic surplus will increase in the market for chicken sandwiches? Use a graph of the market for chicken sandwiches to illustrate your answer.