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1. Define the terms supertype, subtype, and discriminator.
2. What is an exclusive subtype relationship? Give an example other than one shown in this book. Draw an IE Crow's Foot E-R diagram for your example.
3. What is an inclusive subtype relationship? Give an example other than one shown in this chapter. Draw an IE Crow's Foot E-R diagram for your example.
4. Give an example of a recursive relationship other than the one shown in this chapter. Draw an IE Crow's Foot E-R diagram for your example.
Bob is proud of the film and wants as many people as possible to download it. Which price would he choose? How many downloads would be sold?
company has issued a 10-year bonds, with a face value of $1,000,000 in $1,000 units. Interest at 8% is paid quarterly. if an investor desires to earn 12% nominal interest (compounded quarterly) on $10,000 worth of these bonds,
The local economists estimate that Y is equal to $12,000 and Monopoly has set Pc at $10. If Monopoly's MC of serving another customer is equal to $1, what is the profit maximizing price for seasonal passes
Smartphones require superconductors, and the production of superconductors is heavily polluting due to the use of many chemicals in the process. The damages to society are given by Ds = 10x2.a) Find the private marginal benefit, the private margina..
A stock was priced at $150 per share at the end of 2007. The following table shows dividends per share paid during each year and the price of the stock at the end of the year for the following four years: 2008, 2009, 2010, 2011 and the Dividends P..
After reading this study, I am trying to understand how these authors calculated "informal entrepreneurship." They use datasets from the World Bank Group Entrepreneurship Snapshot (WBGES) and Global Entrepreneurship Monitor (GEM) to come up with an..
How does national sovereignty limit our ability to manage common pool resources appropriately? What role, if any, can markets and prices play in the management of these common pool resources?
The demand for widgets is found to be Q=100-11P +0.5Y, where P is the price of widgets in dollars, Y is average income in thousands and Q is the quantity of widgets in thousands. Say that P=7 and Y=50.
Calculate the points on the aggregate demand curve when the price level equals 0.75, 0.80, 1.00, 1.20, 1.25, and 1.50. Compute the price level and real GDP in periods 1-6. Describe the cyclical behavior of real ..
Which of the following is most likely to shift out the Arbocali production possibility frontier?
My brother has a house worth $400,000 and he has no mortgage as it is paid off! His utility bills and insurance and maintenance cost him about %500 per month and property taxes another $500 per month. He claims it only costs him about $1000 a mont..
A selfless person approached Jones and Smith with a $100 bill and offers to sell it to the highest bidder, but both the winning and losing bidders must pay for their bids. So if Jones bids $2 and Smith bids $1they pay a total of $3, but Jones gets..
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