Kareem Khalifa (Philosophy) has received a visiting fellowship from the Center for Philosophy of Science at the University of Pittsburgh in support of his 2016-17 academic leave. He will spend the fall at the Center pursuing his current research project titled Explanation, Pluralism, and Representation. Using case studies from a variety of scientific disciplines, he will examine the extent to which there are universal features of scientific explanations. He will devote special attention to the use of mathematical structures by economists and physicists in certain explanations to challenge the popular philosophical claim that the fundamental role of explanation is to represent causal structures.