[...] most reduplication is just that - the affixation of a C-V skeletal morpheme to a stem and the association of a copy of the stem's phonemic melody with the affixed skeleton.
- Marantz (2004), Pag. 320

[...] reduplication is simply the affixation of a skeleton to a stem [...].
- Marantz (2004), Pag. 326

I will tentatively identify reduplication as a morphological process relating a base form of a morpheme or stem to a derived form that may be analyzed as being constructed from the base form via the affixation (or infixation) of phonemic material which is necessarily identical in whole or in part to the phonemic content of the base form.
- Marantz (2004), Pag. 318

To provide the best account of reduplication rules, we say they "are" normal affixation processes. The one unique feature of reduplication, the feature which leads us to group together diverse morphological processes under the title "reduplication", is the resemblance of the added material to the stem being reduplicated.
- Marantz (2004), Pag. 316

When we claim that reduplication is affixation, we are claiming that reduplication involves the addition of a morpheme to a stem, creating the derived structure [reduplicating morpheme [stem]] or [[stem] reduplicating morpheme] [...].
- Marantz (2004), Pag. 348