Net exports is a positive number in the national income accounts when

Julie always purchases the soda with the lowest price. For Julie, the cross price elasticity of demand for brand X and brand Y will be

A) equal to 0. B) negative. C) positive. D) impossible to determine without more information.

In 2011, the U.S. unionization rate was:

A. 5.5 percent, down by nearly one-half of the rate in the mid-1950s. B. 14.8 percent, up by about one-fourth of the rate in the mid-1950s. C. 11.8 percent, down by more than one-half of the rate in the mid-1950s. D. 21.2 percent, down by 4 percentage points from the mid-1950s.