According to the charts in The Rise and Fall of American Growth we've gone from eating 3 times as much beef as chicken in 1800 to eating 60% more chicken than b

According to the charts in The Rise and Fall of American Growth we've gone from eating 3 times as much beef as chicken in 1800 to eating 60% more chicken than beef. This[1] shows that since 1960 beef has gone up in price by a factor of 2 relative to chicken. So all the evidence I could find supports the author's conclusion even if I don't have any data on relative meat prices going back to 1900 or so. If you've got some data that actually contradicts the authors claim about food prices I'd love to see it but given the congruency I found I'm willing to accept their claim. [1]http://www.nationalchickencouncil.org/about-the-industry/statistics/wholesale-and-retail-prices-for-chicken-beef-and-pork/ http://www.nationalchickencouncil.org/about-the-industry/sta...