Answer:
the nonunion labor market will experience an increase in the number of workers, and this will cause wage rates to decrease in this market.
Step-by-step explanation:
The wage-employment tradeoff refers to a theory that states that higher wages will only be accepted by employers when they can earn higher profits. If that doesn't occur, then higher wages will result in lower profits and therefore employers will higher less employees.
Basically higher wages generally result in lower number of employees.
In this case, unionized workers negotiated a higher wage rate, and therefore that will result in a reduction of total workers employed. Even though you generally need a just cause to fire a unionized worker, eventually the employer will find a just cause and no one will replace the fired employee.
Since the total number of unionized workers will eventually decrease, then the number of non-unionized workers will increase, increasing the labor supply and decreasing the equilibrium wage rate for non-unionized workers.