One of the main issues within path modeling techniques, especially in business and marketing applications, concerns the identification of different segments in the model population. The approach proposed by the authors consists of building a path models tree having a decision tree-like structure by means of the PATHMOX (Path Modeling Segmentation Tree) algorithm. This algorithm is specifically designed when prior information in form of external variables (such as socio-demographic variables) is available. Inner models are compared using an extension for testing the equality of two regression models; and outer models are compared by means of a Ryan-Joiner correlation test. … Path Modeling Segmentation Tree (PATHMOX)