Certain industries experience notable imperfections in their labor markets due to specific characteristics that restrict competition, establish barriers to entry, and provide employers with substantial power over employees. These imperfections can lead to situations where employers have more authority over wages and working conditions, resulting in an unequal balance of power between employers and employees. Identify an industry that frequently faces labor market challenges due to imperfections and discuss the questions below.

1. What are the distinct factors contributing to these challenges? Provide real-world examples to support your answer.