How a flat APC with no price increase for 3 years can be a 6% – 77% price increase

The purpose of this post is to explain the impact of currency differences on article processing charges. Over the past few years megajournal PLOS ONE has been a good model in at least one way, maintaining the APC of $1,350 USD with no price increase over several years. However, if you happen to be paying in Euros, the PLOS ONE APC rose 14% from March to December of 2014, or 23% from March 20, 2014 to March 20, 2015. In South Africa, the price increased 58% in the same 3-year period; in Brazil, the price increase was 77%. Click on the following link to view the PLOS ONE price rises from March to December 2014 and from March 2012 to March 2015 in 8 currencies.
by Jihane Salhab and Heather Morrison
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