Economic & public diplomacy
Economic statecraft and public diplomacy as instruments of foreign policy: sanctions, trade, sovereign wealth, soft power, and the institutions that wield them.
Defining the field
Economic diplomacy is the use of economic instruments—trade, finance, sanctions, aid, and investment—to advance foreign-policy objectives. Public diplomacy, a term coined by Dean Edmund Gullion at Tufts in 1965, is the cultivation of foreign publics (not just governments) through information, exchange, and cultural projection. Joseph Nye's Bound to Lead (1990) and Soft Power (2004) gave the second strand its dominant vocabulary: the ability to obtain outcomes through attraction rather than coercion or payment.
The coercive instruments
Economic statecraft runs on a spectrum from inducement to coercion. At the coercive end sit sanctions. In the United States, the principal authorities are the International Emergency Economic Powers Act (IEEPA, 1977) and the Trading with the Enemy Act (1917), administered by the Treasury's Office of Foreign Assets Control (OFAC). Sectoral and 'secondary' sanctions—penalising third-country firms that deal with a target—were sharpened by the Countering America's Adversaries Through Sanctions Act (CAATSA, 2017). The European Union acts through Council regulations under Article 215 TFEU, while the UN Security Council imposes mandatory measures under Article 41 of the UN Charter (e.g., Resolution 1267 on the Taliban/Al-Qaida, 1999; the Iran regime culminating in Resolution 1929, 2010).
Landmark instances a candidate must retain: comprehensive sanctions on Iraq after Resolution 661 (1990); the 'smart sanctions' turn after the humanitarian critique of the 1990s; the post-February 2022 freezing of roughly $300 billion in Russian central-bank reserves and the cutting of major Russian banks from SWIFT by EU/G7 action. The JCPOA (2015) is the canonical example of sanctions relief as inducement.
Inducement and institutions
At the inducement end sit aid, concessional finance, and market access. The Marshall Plan (European Recovery Program, 1948) remains the archetype. India runs lines of credit through the EXIM Bank and capacity-building via the Indian Technical and Economic Cooperation (ITEC) programme, established 1964. China's Belt and Road Initiative (announced 2013) fuses infrastructure finance with strategic access, prompting Western responses such as the G7's Partnership for Global Infrastructure and Investment (2022) and the EU's Global Gateway (2021).
Trade diplomacy is conducted through the WTO (1995) and its dispute-settlement system, regional pacts (RCEP, 2020; CPTPP, 2018), and bilateral FTAs. Sovereign wealth funds—governed loosely by the Santiago Principles (2008)—turn surplus capital into influence. The candidate should grasp the recurring tension: economic interdependence can deter conflict (the liberal thesis) yet also creates 'weaponised interdependence' (Farrell and Newman, 2019), where chokepoints in finance and data become coercive levers.