To celebrate the 100th anniversary, the editors of Economica organized a workshop with papers given by a range of economists with links to LSE as former students and faculty members. The papers given at the workshop appear in this centenary issue. All papers were peer‐reviewed.We are also seeking, as part of the 100th anniversary to publish 100 papers by authors with LSE connections. The papers in this issue count towards that goal. We thank the authors of this issue as well as those whose papers will appear in future issues for their contributions to the journal. The 100th anniversary challenge remains open to all those with LSE connections.The Editors Timothy Besley, Wouter denHaan, Maitreesh Ghatak, Daniel Gottlieb, Stephen Machin, Henry Overman, Noam Yuchtman