While many believe that money does buy happiness, research shows that richer people aren't necessarily happier people, especially in the United States.

The influx of low-skilled and undocumented workers raises concerns about the impact on low-skilled U.S.-born workers and on the tax burden for all those born in the United States.

Americans are estimated to have raised their donations to charity three-fold over the past 40 years. What motivates them to give?