Economic planning of the farm forest operating unit

A method for long-term, comprehensive planning of farm operating units, primarily the forestry part, is described. The method is based on gross margin calculations, linear programming technique, and the use of high speed electronic computers. The capital value at period-end is used as efficiency criterion linked with a restriction guaranteeing an annual minimum amount of liquid funds. In principle the method is an investment model simultaneously treating all possible investments, their financing, and the need for liquid funds. The method should lend itself to both research and survey purposes as practical planning of forest operating units, either separately or in combination with other economic activity.