15. Ritter's study of Initial Public Offerings (IPOs) showed that the post offering stock performance was: A. less than the control group by about 2% in the five years following the IPO. B. incorrectly priced at issuance because over the next five years the abnormal returns were greater than zero on average. C. immaterial to the pricing of the IPO because future market performance is unknown at issuance. D. equal across IPOs, irrespective of risk or which year they were issued. E. All of these.

The basic difference between macroeconomics and microeconomics is that: a. microeconomics looks at the forest (aggregate markets) while macroeconomics looks at the trees (individual markets). b. macroeconomics is concerned with groups of individuals while microeconomics is concerned with single countries. c. microeconomics is concerned with the trees (individual markets) while macroeconomics is concerned with the forest (aggregate markets). d. macroeconomics is concerned with generalization while microeconomics is concerned with specialization.

Asupermarket has been experiencing long lines during peak periods of the day. the problem is noticeably worse on certain days of the week, and the peak periods are sometimes different according to the day of the week. there are usually enough workers on the job to open all cash registers. the problem is knowing when to call some of the workers stocking shelves up to the front to work the checkout counters. how might decision models the supermarket? what data would be needed to develop these models?

What is the definition of an entrepreneur