https://policyandpoliticsblog.com/2026/06/11/interpretive-process-tracing-themed-section-article-on-policy-diffusion-and-interpretive-process-tracing-explaining-the-spread-of-assisted-voluntary-return-policies/Policy & Politics Journal Blogen2026-06-11T10:32:54+00:00Interpretive process tracing themed section article on “Policy diffusion and interpretive process tracing: explaining the spread of assisted voluntary return policies”Germany, policy diffusion, Interpretive Process Tracing, Interpretivism, Causal Mechanism, Assisted Voluntary Return, Immigration Policy, Migration Governance