All of Gold OA?

Given the recent publication of “Hybrid open access—A longitudinal study” by Mikael Laakso and Bo-Christer Björk, I thought it might be interesting to put together all the pieces: my study of DOAJ-listed journals, my study of “others” (using Beall’s generally pernicious lists as a source directory), and this study of hybrid articles.

Here’s what I come up with, complete for 2012 and 2013, partial for 2014 and 2015. “Questionable” for DOAJ includes journals with unstated/hidden APCs; for the gray segment, it includes a variety of things (see Table 3.4).

2012 2013 2013% 2014 2015 2015%
DOAJ

438,644

493,475

69.8%

560,036

566,922

65.0%

Gray/norm

69,075

98,679

14.0%

135,052

148,564

17.0%

SubNorm

507,719

592,154

83.8%

695,088

715,486

82.0%

DOAJ/Ques

10,539

10,896

1.5%

10,170

8,866

1.0%

Gray/Ques

55,964

89,966

12.7%

120,131

148,399

17.0%

SubQues

66,503

100,862

14.3%

130,301

157,265

18.0%

Hybrid

10,802

13,994

2.0%

Total

585,024

707,010

825,389

872,751

 

I believe this is as complete a picture of gold OA as we’re likely to get, although it does omit a few thousand articles where journals have malware or are otherwise resistant to article counts. I’d suggest a 5% margin of error—and also suggest, as I’ve long suspected, that hybrid OA is still within that margin of error, less than 5% of gold OA.

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