
What the Paper Asks
How and why did national environmental ministries spread around the world between 1960 and 2009? Michaël Aklin and Johannes Urpelainen probe the mechanisms through which domestic political change interacts with international forces to explain the global diffusion of environmental ministries.
Theory: Domestic–International Interaction
The authors propose that domestic conditions shape how countries respond to three types of international influence: foreign pressure (political or reputational costs), external support for capacity building (assistance and resources), and learning effects (policy emulation). Democratic openings, they argue, make governments more receptive to these international signals, increasing the likelihood of creating a ministry dedicated to environmental policy.
How the Argument Is Tested
Aklin and Urpelainen assemble a global dataset recording the formation of national environmental ministries from 1960–2009. Using statistical models of adoption over time across countries, they test whether international salience of environmental problems and measures of international pressure/support are more effective when countries are undergoing democratic transitions.
Key Findings
Why This Matters
The study clarifies how global environmental governance spreads through a mix of internal political change and external influence. By highlighting the conditional role of democratization, the paper helps explain variation in institutional adoption across countries and contributes to broader debates on policy diffusion, state capacity building, and the domestic politics of environmental reform.

| The Global Spread of Environmental Ministries: Domestic-International Interactions was authored by Michaël Aklin and Johannes Urpelainen. It was published by Oxford in ISQ in 2014. |