Joining the open government partnership initiative: An empirical analysis of diffusion effects

Prior empirical studies of the Open Government Partnership have failed to take into account possible diffusion mechanisms contributing to the expansion in the number of countries joining the partnership since its beginning in 2010. Notwithstanding the increase in the study of open government policies over the past decade across multiple levels of government, the factors influencing the decision to join multilateral initiatives like the Open Government Partnership are still under-researched. Using data from 175 countries and covering a period that goes from the year prior to the establishment of the Open Government Partnership (OGP) until the year when the latest current members have joined the partnership (2010-2018), this article examines the diffusion mechanisms affecting a country's decision to participate in the OGP. Based on binary response logit regression models, this study analyses the effects of key diffusion variables while controlling for the countries' internal determinants of participation. The findings indicate that diffusion of the OGP takes place through regional proximity, common cultural and system of government traits, and membership in international organization. While democratic countries are more likely to join, autocracies also join conditional on other countries in the same group joining. This suggests further research is needed to uncover the way countries with different regime traits design and implement transparency and open government policies under the banner of this multilateral initiative.