Higher educational levels allow people to earn higher incomes than would have been possible otherwise. The increase in income has created opportunities to purchase additional goods and services, and to raise the overall standard of living of a large segment of the population. The educational level has also led to increased expectations of workers, and has increased job mobility. Workers are less accepting of undesirable working conditions than were workers a generation ago. Better working conditions, stable employment, and opportunities for training and development are a few of the demands businesses confront more frequently as the result of a more educated workforce.