Final answer:
A change in demand for a factor of production may occur in certain scenarios, including changes in productivity or price, but not in other scenarios. These factors can influence the demand for labor in various industries.
Step-by-step explanation:
A change in demand for a given factor of production will not occur if the productivity of that factor increases, there is a decrease in the price of a substitute factor, or the price of that factor falls. However, a change in demand can occur if the productivity of that factor decreases. These factors can affect the demand for labor. For example, if the productivity of a certain piece of machinery increases, it may lead to higher demand for labor to operate and maintain that machinery. On the other hand, if the price of a substitute factor, such as automation technology, decreases, it may reduce the demand for labor.