Copyright © 2016 The Authors Journal of Agricultural Economics published by John Wiley & Sons Ltd on behalf of Agricultural Economics Society.

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Except where otherwise noted, this item's license is described as Copyright © 2016 The Authors Journal of Agricultural Economics published by John Wiley & Sons Ltd on behalf of Agricultural Economics Society. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.