This Briefing Paper sets out a new basis for reciprocity in what might be deemed essential goods, of which the medical kit and equipment associated with COVID-19 are examples. The authors propose a trade policy bargain that, although time-limited at first, could evolve into a multilateral or plurilateral deal. As governments of net exporting nations realise that export bans do little to end shortages of medical kit in a world of international supply chains, and do much to antagonise trading partners and to embolden economic nationalists at home and abroad, this proposal provides them with a rationale for embracing a more collaborative approach that generates a commercial edge for their exporters of medical supplies. For nations reliant on foreign deliveries of these goods, this proposal provides greater reassurance that supplies will be forthcoming when they are needed—thereby diminishing the case for devoting scarce resources to an import substitution drive on medical goods. The authors describe the underlying commercial logic of this bargain, its elements, and their WTO compatibility. The paper also discusses this proposal in relation to other recent joint trade policy initiatives in this critical area of world trade. Read Briefing Paper 40: PREPARING FOR A SECOND WAVE OF COVID-19: [...]