A salary is the distribution of a guarantee (expected return or earnings from exclusively others) paid by an employer to an employee. As interest is paid to an investor for his investments, a salary is paid to the employee on his invested wealth (time, money, work, resources and thought). Some examples of wage distribution are compensations such as minimum wage, current wages and annual bonuses, as well as remunerations such as prices and tips. For the purposes of federal withholding tax defines 26 U.S.C. . . Paid workers may also receive tips or tips directly paid by clients and benefits for workers who are not monetary forms of pay. As wage work is the dominant form of work, the term “wage” sometimes refers to all forms (or all forms of monetary compensation) for workers. Salary is the monetary ratio for standard units of working time (or a standard amount of work done, defined as a unit number). The first unit of time, which is still often used, is the day of work. The invention of watches coincided with the development of subdivisions of working time, the time of which became the most common basis of the concept of hourly wages.   In 2012, 75 million workers in the United States earned hourly wages, or 59% of employment. In the United States, the wages of most workers are determined by market forces or collective bargaining, where a union negotiates on behalf of workers. The Fair Labor Standards Act sets, among other things, a federal minimum wage that all states must comply with. Fourteen federal states and a number of cities have set their own federally-higher minimum wage rates. For some contacts between the federal government and the federal states, employers must pay what is called the current salary, set by the Davis Bacon Act or its national equivalent. Activists have pledged to promote the idea of a tax-on-life rate that takes into account the cost of living and other basic needs and places livelihoods well above the current minimum wage situation. The minimum wage is there to protect the well-being of the working class.  Even in countries where market forces primarily set rates of pay, studies show that there are still differences in pay for work on the basis of sex and race. For example, according to the U.S. Bureau of Labor Statistics, in 2007 women of all races made about 80% of the median salary of their male colleagues. This is probably due to the supply and demand of women in the market because of family obligations.  Similarly, white men accounted for about 84% of the wages of black men and men 64%.  These are general averages that are not adapted to the nature, quantity and quality of the work done. “For the purposes of this chapter, “wages” are defined as any compensation (excluding fees paid to a public official) for services provided by a worker to his employer, including the present value of all earnings (including benefits) that are paid in cash in another medium;” In addition to the requirement that compensation must apply to “services provided by an employee to his or her employer,” Definition 23 lists exclusions that must also be applied.  Depending on the structure and traditions of the different economies of the world, pay rates are influenced by market forces (supply and demand), work organization, legislation and tradition.