Changes

How competition among interest groups should be modelled (to reflect reality) depends four main factors: the '''sequence or simultaneity ''' of offers, whether lobbyists can make more than one offer or not (i.e. the '''number of rounds'''), the nature of the offers (i.e. '''point or menu offers'''), and whether only the '''number of offers accepted''' (generally one or more than one offer can be acceptedall) . The bullets below give the appropriate model for some of these instances: