In this paper. an elementary mathematical model describing the introduction of a universal basic income in a closed market society is constructed. The model is formulated in terms of a system of nonlinear ordinary differential equations. each of which gives account of how the number of individuals in a certain income class changes in time. https://www.roneverhart.com/2003-2005-HONDA-ACCORD-2-4L-4-Cylinder-Engine-Upper-Intake-Manifold-OEM/