Live and Teach Better is an interest group that was lobbying members of Congress to improve the health benefits of teachers in Wisconsin. Only about 20 percent of the total number of teachers in Wisconsin are members of the group and contribute to it. Recently, it was successful in lobbying for better health benefits for teachers throughout the city. Even though most of the teachers in the city did not make an effort to help the members of the interest group, they were able to enjoy the improved health benefit plans. In this scenario, the problem faced by the members of the interest group is known as the _____.
