We may soon witness the bargain of the century. G20 leaders, representing the world’s largest economies, will discuss Covid-19 this month at a virtual summit, where they will have a chance to secure a return on investment that would make even the legendary investor Warren Buffett blush.

With less than one-tenth of one percentage point of global GDP, the international community can vastly expand access to life-saving Covid-19 tests, treatments, and vaccines (once they are available), thereby putting the global economy back on track to long-term growth and stability.