Unemployment

For this discussion, address the following questions:
How is unemployment calculated, and what is and is not included?
What were the unemployment numbers for the latest three quarters?
Why is unemployment mentioned in business news so often and used as an important metric for our economy?
What might cause the unemployment numbers to be questioned from an accuracy standpoint and a relevancy perspective?
How is unemployment impacted by the phases of the business cycle?
Support your response with at least one scholarly and/or credible resource in addition to the text.