Hopefully one would also weigh moral costs in some way. As FiveThirtyEight[1] demonstrates trivial changes to global economies can mask tremendous changes to human populations.<p>[1] <a href="http://www.fivethirtyeight.com/2009/06/how-to-destroy-almost-half-planet-for.html" rel="nofollow">http://www.fivethirtyeight.com/2009/06/how-to-destroy-almost...</a>