PP-2007-36: Interpretation of Optimal Signals

PP-2007-36: Franke, Michael (2007) Interpretation of Optimal Signals. [Report]

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According to the optimal assertions approach of Benz and van Rooij, conversational implicatures can be calculated based on the assumption that a given signal was optimal, i.e. that it was the sender's best choice if she assumes, purely hypothetically, a particular naive receiver interpretation behavior. This paper embeds the optimal assertions approach in a general signaling game setting and derives the notion of an optimal signal via a serious of iterated best responses (c.f. Jager, 2007). Subsequently, we will compare three different ways of interpreting such optimal signals. It turns out that under a natural assumption of expressibility (i) the optimal assertions approach, (ii) iterated best response and (iii) strong bidirectional optimality theory (Blutner, 1998, 2000) all prove equivalent. We then proceed to show that, if we take the iterated best response sequence one step further, we can account for M-implicatures (Horn's division of pragmatic labor) standardly in terms of signaling games.

Item Type: Report
Report Nr: PP-2007-36
Series Name: Prepublication (PP) Series
Year: 2007
Uncontrolled Keywords: Optimality Theory; Signaling Games; Iterated Best Response; Conversational Implicatures
Date Deposited: 12 Oct 2016 14:36
Last Modified: 12 Oct 2016 14:36
URI: https://eprints.illc.uva.nl/id/eprint/270

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