Population Services International (PSI)
United States of America (USA)
Time frame: 1 June 2025 - 30 May 2026Profile
The Nature Index tracks primary research articles from 178 applied, health, natural and social sciences journals, across many different publishers, chosen by an independent group of researchers. The Nature Index provides absolute Count of primary research articles and fractional Share counts of author contribution to articles. The positions in the table below reflect Population Services International (PSI)'s position overall, domestically, within their sector, and in various subject areas based on their Share. Each position links to the corresponding table where Population Services International (PSI) is listed.
Position by research output Share
Position by research output Share in subject areas
Research
Population Services International (PSI) has the following research output in the current window (1 June 2025 - 30 May 2026) of the Nature Index. Click on Count to view a list of articles representing the corresponding Share value.
Overall research output
Research outputs by subject area
Leading research topics
| Topics | Count | Share |
|---|---|---|
| Statistics | 1 | 0.02 |
Share output for the past 5 years
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Collaboration
Nature Index collaborations highlight fruitful collaborations that lead to high quality research around the world. A collaboration can be between any two institutions or locations co-authoring at least one article in the journals tracked by the Nature Index. The collaboration score between two institutions is the sum of each of their Shares on the papers to which both have contributed. The table and charts below highlight the leading collaborators with Population Services International (PSI).
Top 5 domestic collaborators with Population Services International (PSI) by Share
Collaborating institutions
Note: Hover over the bars to view details about each institution's Share.
| Collaborating Institution | Collaborators' Share | Collaboration Score |
|---|---|---|
| International Food Policy Research Institute (IFPRI) | 0.33 / 0.33 | 0.67 |
| The World Bank | 0.33 / 0.17 | 0.50 |
| Chan Zuckerberg Biohub (CZ Biohub) | 0.02 / 0.04 | 0.06 |
| University of California, San Francisco (UCSF) | 0.02 / 0.03 | 0.05 |
| Stanford University | 0.02 / 0.02 | 0.04 |
Top 5 international collaborators with Population Services International (PSI) by Share
Collaborating institutions
Note: Hover over the bars to view details about each institution's Share.
| Collaborating Institution | Collaborators' Share | Total Share |
|---|---|---|
| PSI Ethiopia | 0.33 / 0.33 | 0.67 |
| University of the Free State (UFS) | 0.33 / 0.17 | 0.50 |
| Institute of Health Carlos III (ISCIII) | 0.02 / 0.01 | 0.04 |
| University of Navarra (UNAV) | 0.02 / 0.01 | 0.04 |
| Hospital Clinic of Barcelona | 0.02 / 0.01 | 0.03 |
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Relationships
Affiliated institutions
The following affiliated institutions are wholly owned, operated, administered or contains research facilities for Population Services International (PSI). All affiliations for an affiliated institution are credited to the institution to which it is affiliated. Each of the affiliated institutions listed below has its own research profile.
- Population Services International (PSI)
Affiliated joint institutions and consortia
Represents joint institutions and consortia for which the institution is designated as a partner institution. Each partner institution of a joint institution or consortium receives an equivalent Share for every affiliation in which the consortium is included.