Describe the ways economic activity is defined and measured in the health care industry

In 250 words, describe the ways economic activity is defined and measured in the health care industry and how these outcomes impact the business-side of health care delivery. Describe how health care businesses can monitor and evaluate the external environment of health care delivery and why this is important. Give some examples of an external environment analysis from your personal experience. How did you make a choice in health care providers based upon information from sources other than the provider? Be sure to cite sources to support your opinions.