In this article, several econometric problems arising from estimating models of charitable contributions are examined. An instrumental variable technique proposed by Clotfelter is used to reduce the bias of the estimated price effect and compare it with other methods. Linear dependence between...

Many studies have focused on the relationship between income and charitable donations either by comparing income and percentage of income donated to construct a “giving curve†or by calculating the income elasticity of giving. In this article, the authors relate these two types of...