Matt Coleman
@matt--coleman.bsky.social
Executive Director at Giving Multiplier
Psychology researcher at Harvard
Previously: Psychology PhD at Northeastern | BS in Neuroscience at Tulane
Psychology researcher at Harvard
Previously: Psychology PhD at Northeastern | BS in Neuroscience at Tulane
New research from Janek Kretschmer & Paul Smeets: separating donation decisions into two stages (1. how much to give, 2. which charity to support) increases charitable impact.
Paper: papers.ssrn.com/sol3/papers....
Paper: papers.ssrn.com/sol3/papers....
October 7, 2025 at 7:51 PM
New research from Janek Kretschmer & Paul Smeets: separating donation decisions into two stages (1. how much to give, 2. which charity to support) increases charitable impact.
Paper: papers.ssrn.com/sol3/papers....
Paper: papers.ssrn.com/sol3/papers....
People in rich countries often underestimate how wealthy they are globally.
A new study finds that a simple nudge correcting this misperception increases generosity:
escholarship.org/uc/item/0wm7...
A new study finds that a simple nudge correcting this misperception increases generosity:
escholarship.org/uc/item/0wm7...
August 4, 2025 at 3:30 PM
People in rich countries often underestimate how wealthy they are globally.
A new study finds that a simple nudge correcting this misperception increases generosity:
escholarship.org/uc/item/0wm7...
A new study finds that a simple nudge correcting this misperception increases generosity:
escholarship.org/uc/item/0wm7...
People see giving time (volunteering) as more impactful than giving money (donating), in part because it feels more personal and connected to the self.
New paper by Samantha Kassirer and Maferima Touré-Tillery: link.springer.com/article/10.1...
New paper by Samantha Kassirer and Maferima Touré-Tillery: link.springer.com/article/10.1...
July 29, 2025 at 5:18 PM
People see giving time (volunteering) as more impactful than giving money (donating), in part because it feels more personal and connected to the self.
New paper by Samantha Kassirer and Maferima Touré-Tillery: link.springer.com/article/10.1...
New paper by Samantha Kassirer and Maferima Touré-Tillery: link.springer.com/article/10.1...
Really cool new preprint: charity effectiveness information can boost donations. But framing matters.
When cost-effectiveness falls below expectations, it can backfire and actually reduce giving.
📃 papers.ssrn.com/sol3/papers....
When cost-effectiveness falls below expectations, it can backfire and actually reduce giving.
📃 papers.ssrn.com/sol3/papers....
May 23, 2025 at 3:28 PM
Really cool new preprint: charity effectiveness information can boost donations. But framing matters.
When cost-effectiveness falls below expectations, it can backfire and actually reduce giving.
📃 papers.ssrn.com/sol3/papers....
When cost-effectiveness falls below expectations, it can backfire and actually reduce giving.
📃 papers.ssrn.com/sol3/papers....
Important new paper for charitable giving: the preference for charities with lower overhead ratios (i.e., "overhead aversion") can be reduced when both: a) explaining the importance of overhead and b) prompting the donor to deliberate about their choice
May 6, 2025 at 9:56 PM
Important new paper for charitable giving: the preference for charities with lower overhead ratios (i.e., "overhead aversion") can be reduced when both: a) explaining the importance of overhead and b) prompting the donor to deliberate about their choice
Very cool new paper: simply providing multiple donation options (vs. just one) increases charitable giving by ~20%, without reducing the number of donors.
📰 doi.org/10.1037/xap0...
📰 doi.org/10.1037/xap0...
March 25, 2025 at 2:07 PM
Very cool new paper: simply providing multiple donation options (vs. just one) increases charitable giving by ~20%, without reducing the number of donors.
📰 doi.org/10.1037/xap0...
📰 doi.org/10.1037/xap0...
How can nonprofits effectively present cost-effectiveness information?
🎯 A brand-new research paper by Joshua Lewis and @deborahsmall.bsky.social finds that people use impact cost information (for example: $1 to provide a meal) as a target for how much they should donate.
Brief summary🧵
🎯 A brand-new research paper by Joshua Lewis and @deborahsmall.bsky.social finds that people use impact cost information (for example: $1 to provide a meal) as a target for how much they should donate.
Brief summary🧵
December 11, 2024 at 5:17 PM
How can nonprofits effectively present cost-effectiveness information?
🎯 A brand-new research paper by Joshua Lewis and @deborahsmall.bsky.social finds that people use impact cost information (for example: $1 to provide a meal) as a target for how much they should donate.
Brief summary🧵
🎯 A brand-new research paper by Joshua Lewis and @deborahsmall.bsky.social finds that people use impact cost information (for example: $1 to provide a meal) as a target for how much they should donate.
Brief summary🧵