In this communication, an analytical model for predicting the compression induced electrical resistance of bulk assemblies of carbon nanomaterials has been presented. The model is based upon the stereological and stochastic approaches for computing the structural parameters of the assembly together with classical Hertzian contact mechanics and constriction resistance techniques to predict the compression induced electrical response. The model has been validated with the experimental data of carbon nanofibers (CNFs) obtained from the literature. The electrical response of CNFs was found to be tunable by varying the fiber orientation distribution within the assembly specifically under lower amount of compressive stresses. (C) 2015 Elsevier Ltd. All rights reserved.