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Synthesising implicit contracts

In regulated interactive systems, one party's behaviour may impose restrictions on how others may behave when interacting with it. These restrictions may be seen as implicit contracts which the affected party has to conform to and may thus be considered inappropriate or excessive if they overregulate one of the parties. In this paper we characterise such implicit contracts and present an algorithmic way of synthesising them using a formalism based on contract automata to regulate interactive action-based systems.