At 4,884 square miles, the Tyrol region of western Austria is about the same size as Kansas City. But nineteenth-century race scientists “discovered” over 20 separate races there. The differences...

At 4,884 square miles, the Tyrol region of western Austria is about the same size as Kansas City. But nineteenth-century race scientists “discovered” over 20 separate races there.

The differences among social classes for giving money to charity were much greater than the differences for contributing time to help the needy. What might explain that?