Just how strong the competitive pressures are from substitute products depends on whether
A. the producers of substitutes have ample budgets for new product research and development (R&D).
B. attractively priced substitutes are readily available and the ease with which buyers can switch to substitutes.
C. the available substitutes are strongly or weakly differentiated and whether buyers make purchases frequently or infrequently.
D. the available substitutes are products or services.