This is a generalization of the Heckscher-Ohlin model, assuming technological differences that allow factor intensity reversals and different stages of industrialization inner country.We introduce a dynamical version of the classical Stolper-Samuelson and Rybczynski theorems to determine the patterns of trade and prove that the deprotection in the traditional sector might stagnate the economy of the less developing country as the Prebisch-Singer hypothesis state.