What would count as progress
Evidence on whether private giving crowds public budgets in or out, and shared norms for when private money should shape public policy.
Why it matters
Private giving and public spending interact. A gift can unlock government money, replace it or steer it. Each has different consequences for the people served and for democracy.
Where to start
Economists have studied crowding-in and crowding-out for decades, with mixed results. The open problem is turning that literature into guidance a giver can use.