The following Fact Sheets were created using data from the Philanthropy Panel Study (PPS), a module of the Panel Study of Income Dynamics (PSID), which reaches more than 9,000 households every two years.
The following Fact Sheets were created using data from the Philanthropy Panel Study (PPS), a module of the Panel Study of Income Dynamics (PSID), which reaches more than 9,000 households every two years.