Welcome to this online version of the NIIS, the database developed at the Ostrom Workshop.
During my stay at the Workshop in 2010 I cleaned and repaired this database. Finally, here it
is online, so that anyone can work with it.

Thanks to Elinor Ostrom and Julie England for the help.

I would also like to mention the other researchers that are currently working on or have been
working with the NIIS: Elinor Ostrom, Ganesh Shivakoti, Marty Anderies, Miran Bozicevic, Elicia
Ratajczyk, Shui Yan Tang, Wai Fung Lam, Atul Pokharel, Prachanda Pradhan and Robert Yoder.

Check out their work with the NIIS. You can find their publications at the Digital Library of the Commons.

Please take also a look at the Common Pool Resource Database (CPR), which is available online
at Arizona University here.

Creative Commons License
The NIIS database is licensed under a Creative Commons Attribution 4.0 International License.

The structure of the database is as follows:

Name of tableNumber of casesNumber of variables
Agriculture10452
Districts2361
Document1654
Location25522
Operational level255135
Oprules125934
Oprules226057
Orginven3149
Resource25675
Organizational structure25690
Screener4830
Subgrp26150
Timerel2647

You can find all the tables of the NIIS below:

Agriculture

Document

Location

Opl

Oplevel

Oprules1

Oprules2

Orginven

Orgstruc

Ors

Resource

Screener

Subgroup

TimerelAg