@incollection{Bird2009-BIRSPR,pages = {215--41},author = {Alexander Bird},publisher = {Clarendon Press},title = {Structural Properties Revisited},abstract = {Those who hold that all fundamental sparse properties have dispositional essences face a problem with structural (e.g. geometrical) properties. In this paper I consider a further route for the dispositional monist that is enabled by the requirement that physical theories should be background-free. If this requirement is respected then we can see how spatial displacement can be a causally active relation and hence may be understood dispositionally.},booktitle = {Dispositions and Causes},year = {2009},editor = {Toby Handfield}}@