Iwao Hirose is Associate Professor at the Philosophy Department and the School of Environment, McGill University. He is the author of Moral Aggregation (OUP, 2015), Egalitarianism (2015), and The Ethics of Health Care Rationing (with Greg Bognar, 2014). He is also editor of Weighing and Reasoning: Themes from the Philosophy of John Broome (with Andrew Reisner, OUP, 2015).

Jonas Olson is Professor of Practical Philosophy at Stockholm University. He works mainly on value theory, metaethics, and the history of moral philosophy. He is the author of Moral Error Therory: History, Critique, Defence (OUP, 2014).

Matthew D. Adler
Gustaf Arrhenius
Ralf M. Bader
John Broome
Krister Bykvist
Erik Carlson
Ruth Chang
Garrett Cullity
Daniel M. Hausman
Chris Heathwood
Iwao Hirose
Nils Holtug
Graham Oddie
Jonas Olson
Prasanta K. Pattanaik
Wlodek Rabinowicz
M. A. Roberts
Toni Rønnow-Rasmussen
David Schmidtz
Christine Tappolet
Valerie Tiberius
Yongsheng Xu
Michael J. Zimmerman

"This handbook collects a nice assortment of papers on value theory, ranging from papers about highly abstract structural features of axiology to applied topics. It is, we think, a helpful addition to the literature. Many of the papers are excellent. Some provide useful summaries of debates...The volume will, we are sure, be useful for teaching the debates, especially at the graduate level...It is well worth reading for both seasoned axiologists and graduate students working in ethics, and it provides a terrific sampling of the state of the art." -- Notre Dame Philosophical Reviews Online

"After a clear introduction by the editors, the book includes twenty-two new essays divided into three groups. All of the essays are of high quality. Some are more accessible than others, but each essay was well-written and contributes to the overall excellence of the volume...it is a helpful resource to have on the shelf...Many students and instructors would do well to study the essays in this section to clarify their conceptions and inform their arguments regarding values." -- Philosophia Christi