According to Labor Economics by George J. Borjas on labor supply (Chapter 3, sections 8-10). In your answer, be sure to use a mathematical expression(s) from course materials and explain the economic concept (the phrase in bold) intuitively and/or graphically.

1)Firms hire fewer workers when the real wage rises, but the reduction in employment is larger for firms in some industries compared to firms in other industries. What is one reason why?

Textbook link: https://b-ok.cc/book/2481320/120e6d