Governments and non-profits devote substantial resources to increasing take-up of the Earned Income Tax Credit (EITC) through educational outreach. We study a different approach: policies that encourage tax filing. In a large field experiment, we find that IRS letters about free tax preparation...

Since 1997 the Netherlands has a tax allowance scheme introduced to promote investments in energy saving technologies and sustainable energy production. This Energy Investment Tax Allowance (EIA in Dutch) reduces up-front investment costs for firms investing in the newest energy saving and...