The labor market is a complex socio-economic phenomenon that requires constant monitoring and regulation. There are a significant number of definitions of this concept, which are significantly different and quite harmoniously complement each other. At the same time, scientists use complex, systemic and dialectical approaches. Scientists consider typical models of the labor market: American, Japanese, Swedish and Chinese, which differ in a number of key features and principles of operation.
The article presents the results of theoretical research on obtaining of the maximum profit by the installation and procurement company in the manufacture and sale of pipe billets for the installation of ventilation systems in the production premise. Graphical and analytical dependences are given. The results of research substantiate the receipt of the maximum profit in the manufacture and sale of the ventilation pipe billets of the different diameters by the installation and procurement enterprise.