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Transparent pricing

Our transparent pricing ensures that we do not receive both an article processing charge and subscription income for open access (OA) articles. View our individual journal and package subscription prices.

How we set 2023 prices

First we took account of cost inflation based upon the official UK Retail Price Index (RPI) at 4.1% (February 2022). Other economic factors may have to be taken into account future years and we will give details of these as and when they are applicable.

Then we took account of the percentage change in the number of non-OA articles published. We did this by comparing the 2 most recent rolling 3-year periods: 2018-20 and 2019-21 (with 2021 being the last complete year).

By using rolling 3-year periods rather than comparing 1 year with the previous, we hope to smooth out any short-term fluctuations. If the percentage of non-OA articles drops the price will be adjusted accordingly. We have a safety cap of ±15% to this figure to protect libraries from the subscription price changing too suddenly in any 1 year.

Any one-off increases to article numbers, for instance to clear a backlog of articles, as well as OA articles, where a fee has been paid, are not counted in these figures. Any articles that have had a full waiver of the APC fee will be counted as non-OA for this calculation. 

Below are final article counts for each subscription title in the periods 2018-20 and 2019-21, and the division of paid OA and non-OA articles in each period. The percentage change in number of non-OA articles is combined with the rate of inflation as measured by UK RPI to give the net decrease or increase in price. For simplicity subsequent prices are rounded down or up to the closest full British Pound, US Dollar or Euro.

2018 - 20 2019-2021 Change in non-OA 2023 Price Adjustment
Biology Letters 646 articles published, of which 103 paid for OA 600 articles published, of which 105 paid for OA -8.84% 4.10% -8.84% = -4.74%
Interface Focus 204 articles published, of which 50 paid for OA 213 articles published, of which 50 paid for OA +5.84% 4.10%+5.84% = 9.94%
Interface  839 articles published, of which 223 paid for OA 830 articles published, of which 234 paid for OA  -3.25% 4.10% -3.25%= 0.85%
Notes and Records 88 articles published, of which 5 paid for OA  101 articles published, of which 6 paid for OA  +14.46% 4.10%+14.46%= 15.00% CAP
Proceedings A 831 articles published, of which 110 paid for OA   887 articles published, of which 127 paid for OA   +5.41% 4.10% +5.41% = 9.51%     
Proceedings B 1773 articles published, of which 397 paid for OA  1810 articles published, of which 494 paid for OA     -4.36% 4.10% -4.36% = -0.26%
Philosophical Transactions A 1070 articles published, of which 172 paid for OA  1042 articles published, of which 201 paid for OA  -6.35% 4.10% -6.35% = -2.25%
Philosophical Transactions B 1286 articles published, of which 311 paid for OA  1246 articles published, of which 328 paid for OA -5.85% 4.10% -5.85% = -1.75%
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