Are explicit performatives assertions?

This paper contributes to the study of explicit performative utterances in the following ways. First, it presents arguments that support Austin's view that these utterances are not assertions. In doing so, it offers an original explanation of why they cannot be true or false. Second, it puts forward a new analysis of explicit performatives as cases of showing which act one is performing, rather than of instances of asserting or declaring that one is performing a particular act. Finally, it develops a new account of the role of the performative prefix in signalling performative intentions that shows how the prefix can play a special role in the interpretation of performative utterances.