All other things being equal, which one of the following is most likely to cause the marginal revenue product of labour (MRPLMRP_LMRPL) curve for technicians in the wind turbine maintenance industry to shift to the right?
A fall in the market price of electricity generated by wind turbines.
A government subsidy to consumers purchasing electricity generated from wind turbines.
A decrease in the hourly wage rate paid to wind turbine maintenance technicians.
An increase in the number of qualified wind turbine technicians seeking employment.
