Not a greater need or desire, but a fundamental need. It's an important distinction. In a perfect market, if the only offers to buy a product are too low, you w

Not a greater need or desire, but a fundamental need. It's an important distinction. In a perfect market, if the only offers to buy a product are too low, you will stop production and close the company because you can't make a profit. In the labor market, if the salaries are too low, people will still take the jobs because low income is better than zero income.