Which of the following is not true?

a. economic fluctuations are irregular and difficult to predict.
b. most macroeconomic quantities (such as gdp, inflation, unemployment, and interest rates) fluctuate together.
c. as output falls, unemployment rises.
d. because macroeconomic quantities don't fluctuate together, it matters which specific measure of economic activity we analyze.

In order to gauge public opinion about how to handle iran's growing nuclear program, a research group surveyed 1010 americans by telephone and asked them to rate the threat iran's nuclear program poses to the world on a scale of 1 to 10. describe the population, sample, population parameters, and sample statistics. identify the population in the given problem. choose the correct answer below.

You own 2,200 shares of deltona hardware. the company has stated that it plans on issuing a dividend of $0.42 a share at the end of this year and then issuing a final liquidating dividend of $2.90 a share at the end of next year. your required rate of return on this security is 16 percent. ignoring taxes, what is the value of one share of this stock to you today?

Why is efficiency an important economic goal?