Jake's Janitorial Service employs thirty minimum-wage workers. The janitorial industry in his market area employs around six thousand minimum-wage workers. Other industries in the area employ almost three million minimum-wage workers. A change in government regulations regarding sanitation in the workplace causes a 3% increase in demand for janitorial workers. Given this information, it is likely that the janitorial industry is a(n) industry because . circular cost; it hires workers that have the skills used in other industries. increasing cost; its wage bill will rise as it employs more workers. constant cost; it employs a very small percentage of minimum wage workers. decreasing cost; it pays workers such low wages.