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C.E.O.s write big checks in coronavirus fight

Corporate leaders are increasingly announcing donations or taking pay cuts to help respond to the pandemic — and, quite probably, to keep the political heat off.

Jack Dorsey plans to donate $1 billion of his holdings in Square, or a third of his net worth, to coronavirus relief programs. The L.L.C. he is founding with the money will track its expenditure publicly via this Google Doc. It was the single biggest gift announced by a business leader thus far, but only the latest in a growing list:

• Jeff Bezos and the foundations of Michael Dell and of Bill Gates have each pledged $100 million to causes like food banks and vaccine development efforts.

• Michael Bloomberg’s philanthropic organization is spending $40 million on rapid-response teams, with a focus on Africa.