fatemeh azizkhani, center expert. researches of the parliament, such as in determining the national wage, the cost of living in all regions is the same it is calculated, it is given to both the workers of big cities and the workers of deprived areas. workers in big cities cannot make a minimum living. employers in low-income areas cannot pay the approved minimum wage. in this way , they hire informal workers, which is not in the interest of the workers. hadi abui in the trade union of workers wherever we are