Linguistic universals, markedness and learnability: comparing two different approaches

There are currently two different linguistically-based approaches to universals in second language acquisition, one stemming from typological universals (Greenberg, 1966) and the other from Chomskyan Universal Grammar. Associated with each approach is a concept of markedness. Typologists define markedness implicationally; current theories of language learnability define markedness in terms of the Subset Principle. Although coming from very different perspectives, these two definitions of markedness coincide in a number of predictions they make for L1 and L2 acquisition. Similarities and differences between these two approaches to markedness and acquisition are discussed in this paper.