Multilateral Agreements

While integrated access to Multilateral Agreements is still under development, we currently offer two forms of bulk download access:

Multilateral Agreements: Treaty Centric (Download )

In the treaty centric representation of the data, each line represents an individual agreement. Columns are used to designate the various parties to the agreement.

Multilateral Agreements (Dyad Centric) (Download )

Why are there over 800,000 multilateral agreements?

Each multilateral treaty has been converted into a series of bilateral entries (referred to as dyadic data). For example, a multilateral treaty containing 3 countries (A, B, and C), becomes three dyadic entries: An entry for A with B, an entry for A with C, and an entry for B with C.

How should I analyze the multilateral agreements?

It depends on the substantive question. However, it is not recommended that you simply download the dyadic version of the multilateral data, merge it with the dyadic entries for the bilateral treaties, and then start analyzing. This will lead to flawed inferences. To understand why, please refer to Poast, Paul. "(Mis)Using Dyadic Data to Analyze Multilateral Events." Political Analysis. Autumn 2010. pp. 403-425, which is available at