The Economics of Sanctions Evasion Through Proxy Networks: Iranian Proxy Groups as Economic Pressure Release Valves

This study investigates the economic dynamics of sanctions evasion through proxy networks, examining whether Iranian proxy groups—including Hezbollah, the Iraqi Popular Mobilization Forces (PMF), and Ansar Allah (Houthis)—function as economic pressure release valves that systematically diffuse the impact of international sanctions. Despite decades of increasingly comprehensive economic sanctions culminating in the "maximum pressure" campaign of 2018, Iran has demonstrated remarkable economic resilience without making the comprehensive policy concessions that sanctioning powers have sought. This study employs a mixed-methods approach integrating interrupted time series analysis (ITSA), panel data regression with fixed effects, network analysis of U.S. Treasury Office of Foreign Assets Control (OFAC) designations, and qualitative policy analysis to examine the relationship between sanctions intensity, proxy presence, and economic outcomes across Iran, Iraq, and Lebanon from 2010 to 2024. Drawing on data from 898 OFAC sanctions designations, UN Comtrade trade statistics, IMF and World Bank economic indicators, and ACLED conflict data, the analysis reveals that major sanctions events produce significant immediate negative shocks to Iran's GDP growth—approximately 4 percentage points following the 2012 EU oil embargo and 10 percentage points following the 2018 maximum pressure campaign—yet evidence of subsequent adaptation suggests the development of resilience mechanisms. The sanctions-proxy interaction term, while not statistically significant due to sample size limitations, is consistently positive across model specifications, providing directional support for the pressure release valve hypothesis. Network analysis reveals that the 2018 campaign produced more sanctions designations (435) than all previous years combined, indicating unprecedented escalation. This dissertation contributes to theory by proposing a Pressure Diffusion Model that conceptualizes proxy networks as mechanisms for redistributing concentrated economic pressure across regional economies, thereby reducing the marginal political cost of sanctions on the target regime. The findings have significant implications for sanctions design, counter-proliferation policy, and understanding the economic dimensions of proxy warfare in contemporary international relations.