Given the task definition and input, reply with output. In this task, you are given a sentence in Spanish and your task is to translate it into English. In translation, keep the numbers and capitalization (capitalize only the first word of each sentence and name).

Si el mercado de trabajo funciona por los niveles de empleo, flexibilidad y eficacia salarial, no pueden no funcionar el Estado benefactor y la proteccion social, y viceversa.
If the labour market functions by means of certain levels of employment, flexibility and salary discipline, then it is impossible for the welfare state and social protection not to function, and vice versa.