Principles Of Economics 2e
2nd Edition
ISBN: 9781680920864
Author: Timothy Taylor, Steven A. Greenlaw, David Shapiro
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 29, Problem 23CTQ
Why would a nation “dollarize”—that is, adopt another country’s currency instead of having its own?
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2. Question
The 'Democratic Family' consists of three members {mother m, father f, daughter
d}, that have different preferences with respect to how much money X € [0,8]
they think should be invested in the new family car. These preferences can be
represented by the following utility functions:
-
Mother m: um(X) = 2X - X²
Father f: uf(X) = 10X - X²
- Daughter d: ud(X) = 4X - X²
Calculate for each family member (f, m, d) the preferred amount of money
to invest in the new car denoted by X; for i = {m, f,d}. Assume that
(Xf, Xm, Xd) are the three alternatives on which the family must decide. Show
that each family member has rational preferences over this domain.
Preferences on the family level are determined by pairwise majority voting (all
family members vote on two alternatives). Derive the family preference and
check whether it is rational.
Assume that the final family decision is made by conducting sequential pair-
wise majority voting, where the loosing alternative is eliminated. Does…
3. Question
You invented a new lateral-flow test for asymptomatic Covid-19 detection,
where saliva is entered into a test-tube and then the result is shown directly
on the device. However, to save on costly chemicals you designed the tests
such that it always reports a negative test result. Assume that the incidence
rate is 5 per 1000 and that your test is used for detection of asymptomatic
cases (without symptoms).
(a) Calculate the probability that 100 randomly determined volunteers receive
a correct test result by using the AND-rule and the OR-rule. Can your
test be qualified as a diagnostic test?
(b) The health authorities are investigating the performance of your test.
Government guidelines require a specificity (conditional probability to re-
ceive a negative test result given that the test-taker is not infected with
COVID19) of at least 97% and a sensitivity (conditional probability to
receive a positive test result given that the test-taker is infected with
COVID-19) of at…
Chapter 29 Solutions
Principles Of Economics 2e
Ch. 29 - How will a stronger euro affect the following...Ch. 29 - Suppose that political unrest in Egypt leads...Ch. 29 - Suppose U.S. interest rates decline compared to...Ch. 29 - Suppose Argentina gets inflation under control and...Ch. 29 - This chapter has explained that one of the most...Ch. 29 - A booming economy can attract financial capital...Ch. 29 - How would a contractionary monetary policy affect...Ch. 29 - A central bank can allow its currency to fall...Ch. 29 - Is a country for which imports and exports...Ch. 29 - What is the foreign exchange market?
Ch. 29 - Describe some buyers and some sellers in the...Ch. 29 - What is the difference between foreign direct...Ch. 29 - What does it mean to hedge a financial...Ch. 29 - What does it mean to say that a currency...Ch. 29 - Does an expectation of a stronger exchange rate in...Ch. 29 - Does a higher rate of return in a nations economy,...Ch. 29 - Does a higher inflation rate in an economy, other...Ch. 29 - What is the purchasing power parity exchange rate?Ch. 29 - What are some of the reasons a central bank is...Ch. 29 - How can an unexpected fall in exchange rates...Ch. 29 - What is the difference between a floating exchange...Ch. 29 - List some advantages and disadvantages of the...Ch. 29 - Why would a nation dollarize—that is, adopt...Ch. 29 - Can you think of any major disadvantages to...Ch. 29 - If a countrys currency is expected to appreciate...Ch. 29 - Do you think that a country experiencing...Ch. 29 - Suppose a country has an overall balance of trade...Ch. 29 - We learned that changes in exchange rates and the...Ch. 29 - If a developing country needs foreign capital...Ch. 29 - Many developing countries, like Mexico, have...Ch. 29 - What would make a country decide to change from a...Ch. 29 - A British pound cost 2.00 in U.S. dollars in 2008,...
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