This article is concerned with the way in which the balance of storage--storing and processing
words through full-form representations--and computation~storing and processing words
through morpheme-based representations--in lexical processing in the visual modality is
affected by the following 3 factors: word formation type (roughly, inflection vs. derivation),
productivity, and affixal homonymy. Experimental results for 5 different Dutch suffixes,
combined with previous results obtained for 4 comparable Finnish suffixes (R. Bertram, M.
Lalne, & K. Karvinen, 1999) and 2 Dutch suffixes (R. H. Baayen, T. Dijkstra, & R. Schreuder,
1997), show that none of these factors in isolation is a reliable cross-linguistic predictor of the
balance of storage and computation. The authors offer a general framework that outlines how
morphological processing is influenced by the interaction of word formation type, productivity,
and affixal homonymy.