This study empirically investigates a wide array of factors that have been
argued to differentiate fast from slow innovation processes from the perspe
ctive of the research and development organization. We test the effects of
strategic orientation (criteria- and scope-related variables) and organizat
ional capability (staffing- and structuring-related variables) on the speed
of 75 new product development projects from ten large firms in several ind
ustries. Backward-elimination regression analysis revealed that (a) clear t
ime-goals, longer tenure among team members, and parallel development incre
ased speed, whereas (b) design for manufacturability, frequent product test
ing, and computer-aided design systems decreased speed However, when projec
ts were sorted by magnitude of change, different factors were found to infl
uence the speed of radical and incremental projects. Moreover, some factors
that sped up radical innovation (e.g., concept clarity, champion presence,
co-location) were found to slow down incremental innovation. Together, the
radical and incremental models explain differences in speed better than th
e general model. This suggests a contingency approach to speeding up innova
tion. Implications for researchers and managers are discussed. (C) 1999 Els
evier Science Inc.