The local health department of a small town has hired a research firm to study the development of cancer in residents in the town due to a suspected cancer-causing agent and environmental pollution. the researcher will compare data on participants at age 10, 20, 30, 40, 50, 60, 70, etc. to see if there are increasing rates of cancer in the town. this type of research study is called a:

Most states have licensing registration requirements for child care centers and family daycare homes. these usually include minimum standard for operation. which of the following would you most likely find required in a statement of state licensing standards for child care centers?

Biochemical corp. requires $600,000 in financing over the next three years. the firm can borrow the funds for three years at 10.80 percent interest per year. the ceo decides to do a forecast and predicts that if she utilizes short-term financing instead, she will pay 7.50 percent interest in the first year, 12.15 percent interest in the second year, and 8.25 percent interest in the third year. assume interest is paid in full at the end of each year. a)determine the total interest cost under each plan. a) long term fixed rate: b) short term fixed rate: b) which plan is less costly? a) long term fixed rate plan b) short term variable rate plan

By 2020, automobile market analysts expect that the demand for electric autos will increase as buyers become more familiar with the technology. however, the costs of producing electric autos may increase because of higher costs for inputs (e.g., rare earth elements), or they may decrease as the manufacturers learn better assembly methods (i.e., learning by doing). what is the expected impact of these changes on the equilibrium price and quantity for electric autos?