An implicational map of parts of speech

In this paper we present a two-dimensional implicational map of parts of speech. We show that this map constitutes an improvement with respect to the one-dimensional parts of speech hierarchy originally proposed in Hengeveld (1992) in terms of typological adequacy. In addition, our map is an innovation in relation to traditional semantic maps since it is implicational in nature and since the typological implications it contains are hierarchically ordered with respect to one another. Finally, our proposal shows that the analytical primitives underlying map models need not be exclusively semantic in nature, but may also include other dimensions, in this case pragmatic ones.