An empirical model is developed to distinguish the roles of resource-l
evel differences from productivity differences in explaining output di
fferences between exporters and non-exporters of Taiwanese electronic
products. Our results indicate that the larger size of exporters relat
ive to non-exporters explains the bulk of the difference in output bet
ween the two groups of producers. Nevertheless, there are significant
differences in productivity levels between exporters and non-exporters
in three out of the four products examined. The contribution of these
differences to output differences between the two groups of producers
vary from 3 to 20%, depending on the electronic product and model spe
cification.