Abstract: The current capitalistic economic system is very prone to crises, social inequity and waste of natural resources. In combination, this threatens the means of livelihood for future generations and is, therefore, at variance with a sustainable development. An alternative economic system is proposed with the potential to overcome these difficulties. In this system, international trade is minimized to reduce unnecessary waste and pollution by transports. However, the inhomogeneous distribution of natural resources requires a global regulation of its fair allocation to all countries. At the global level this exchange is based on equivalence economic principles while at national levels taxes on assets, resource usage and pollution are raised to regulate the national economy. Furthermore, the government controls money supply and wages. The latter is implemented in such a way that working time adapts to the demand of labor. Here it will be shown, by means of a mathematical model that wealth and exploitation of natural resources can be regulated in a stable national economy to cope with sustainable development.