In the U.S., Bridgespan Group, a nonprofit that provides advice to charities and individuals, found ultra-wealthy American families donated just 1.2% of their assets to charity in 2017. While in the U.K. the median level of giving among those with £1 million to £10 million ($1.2 million to $12 million) in investable assets is just £500 ($645) a year according to the Beacon Collective, a campaign group.

Most would agree these percentages are trivial compared to what they could be. Here are six ways to encourage those with wealth to donate more of it.

1. Peer Influencing
2. Managers Of Money Need To Help Donate It
3. Giving Together
4. Give Charities a Deadline
5. Measure Donors and Donations
6. Celebrate

Read the full article about how to get the wealthy to donate more to charity by Oliver Williams at Forbes.