International Initiative for Impact Evaluation

International Initiative for Impact Evaluation

Open Access statistics for International Initiative for Impact Evaluation, United States, covering academic research published from 2002 to 2024.

Open Access statistics for International Initiative for Impact Evaluation, United States, covering academic research published from 2002 to 2024. Read More.


Open Access Percentage

72%


Total
Publications

112


Total Open
Publications

81


Total
Citations

3.8K


Open Access
Percentage

72%


Total
Publications

112


Total Open
Publications

81


Total
Citations

3.8K

Website

download

Breakdown

18% 29% 24% 29%

Publisher Open

18%

Both

29%

Other Platform Open

24%

Closed

29%

Percentage of Open Access over time

0%10%20%30%40%50%60%70%80%90%100%
20022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024

Publisher Open

Both

Other Platform Open

Closed

Volume of Open Access over time

024681012141618Total Publications
20022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024

Open

Closed

Publisher Open

60%OA Journal

OA Journal 60%

30

Hybrid 24%

12

No Guarantees 16%

8

Other Platform Open

Domain 49%

28

Other Internet 42%

24

Institution 11%

6

Preprint 7%

4

Public 4%

2

Other Platform Locations

Name

Platform Type

Publications

PubMed Central
Domain
28
DOI
Other Internet
21
Econstor - Econstor
Other Internet
3
Research Square
Preprint
2
Figshare
Public
2
Europe PMC
Domain
2
Unknown Repository
Other Internet
1
University of Sussex - Sussex Research Online
Institution
1
University of Minnesota, USA - AgEcon Search
Institution
1
University of Melbourne - Minerva Access
Institution
1
1 / 2

Data updated 18 August 2025

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