This document aims at proposing an analytical model that helps improve the selection of the human resource in organizations, in order to increase organizational efficiency. In the interest of carrying out such a model, we used fundamental research tools such as hermeneutics, comparative statics, and narrative. Important factors to be taken into account during personnel selection are also analyzed, such as job satisfaction, productivity, and efficiency wages. The purpose of the model that is here proposed is to increase the productivity and the welfare of employees, as well as to reduce uncertainty when making decisions in organizations; and taking into account that there are different positions with different time availability requirements, it is based on three key variables: the non-work time of the individual, the time the individual is willing to stay at work, and the level of education of the individual. The last two are the most important and allow us to conclude that, in the case of senior management, people who run for these positions should be individuals with a high level of knowledge, willing to sacrifice much of their time at work; while services such as surveillance should be occupied by people willing to sacrifice much of their time at work and who have low levels of education.
