manat56q3.....its complete

this is a compete questing

) Consider the performance of three web sites involving products that are sold to consumers. http://www.apple.com/itunes/ is a web site that sells music to be downloaded to a computer or an i-pod. The business is very successful so far. http://www.pets.com/ was a web site that sold pet products ranging from bags of kitty litter and dry dog food to jeweled collars for cats and fancy blankets for poodles. The business failed. It remains best known for its commercials featuring a dog-like sock-puppet. http://www.godevil.com/ is a web site advertising duck hunting boats designed to maneuver in very shallow water. Warren Coco, the inventor of the Godevil considers the website successful so far. a) Discuss the differences in product and business model that might explain why the first and third of these websites (and their businesses) are successful but the second web site (and its business) failed. It may be useful to look at the first and third web sites, but, alas, you won't be able to look at the second website. b) How, if at all, would your answers in (a) change if search engines like Google did not exist. 2) In "A Few Degrees of Separation", Joe LeDoux describes the purposes of and relationships among the sensory thalmus, the sensory cortex and the amygdale. Suppose that LeDoux were to read Nick Murray's advice to an aspiring stockbroker in "Planning for the Five Great Goals of Life". Explain how LeDoux would use neuroscience arguments to explain how Murray's advice actually worked. 3) In "How Experts Differ from Novices," the authors write: "Experts' knowledge cannot be reduced to sets of isolated facts or propositions but, instead, reflects contexts of applicability: that is, the knowledge is "conditionalized" on a set of circumstances." a) Select an example from the Beamish-Levy-Murnane reading on car repair (February 10) and show how this idea applies.

In the matrix below, each coefficient refers to the number of units of product j produced in country i in one person-day of labor. aij Shoes Wheat U.S. 4 6 Spain 2 2 (a) Assume both economies are at full employment so that producing more of one good requires reallocating labor from the other good. In a world without trade, if the U.S. wants four more shoes, how many bushels of wheat will it have to give up? If Spain wants four more shoes, how many bushels of wheat will it have to give up? (b) Calculate a trade proposal in which the U.S. offers X bushels of wheat to Spain in exchange for 4 shoes. Your calculated offer should be such that the U.S. loss of wheat is less than if it produced the 4 extra shoes domestically and that Spain is left with at least as many shoes and at least as much wheat as it had before tradei.e. both countries are better off. (c) In the spirit of the Simon chapter, develop a parallel example where humans and machines take the place of the U.S. and Spain and show how specialization increases total output in the economy. 2. In Table 2 of Alan Krueger's article "Have Computers Changed the Wage Structure?" he shows that, after controlling for the effects of age, education, etc., persons who work with a computer earn a premium of about .18 in the natural log of their wage (the dependent variable of the regression). This translates into about a 20% premium in their actual wage. (a) How would the advertising people who develop Dell commercials like to interpret this coefficient? (b) Give several reasons why the Dell interpretation in (a) may be wrong. (c) Explain why, in Table 2, the coefficient on "uses computer at work" drops in value from .276 (in column 1) to .17 (in column 2) when controlling for things like education, experience, gender, etc. (d) Given plenty of resources, how would you design an appropriate experiment to estimate the correct value of the coefficient (i.e. the causal parameter) Krueger has estimated? 3. Since you have all done at least a little programming, you know it is reasonable to think of a computer as a machine that executes rules. Some of these rules are arithmetic rules - i.e. 6x3 = 18. Others are logical rules - i.e. If [x(i) 15.0] Go to 35. (a) Using rules, write out as completely as you can the process of issuing an airline boarding pass to a passenger - in other words, the software that drives the kiosks for self-service check-in at most airports. (b) In footnote 6 of "The Corporation.....", Simon writes: "This example will seem entirely fanciful only to persons not aware of some of the research now going on into the possible automation of psychiatric processes." The most famous example of a computerized psychiatrist is Eliza, a program to mimic a Rogerian psychoanalyst written in the 1970s by Joe Weizenbaum, now an emeritus professor in Course VI. Go to: http://www.manifestation.com/neurotoys/eliza.php3 and have a 10 or 15 line conversation with Eliza. Based on your conversation describe as well as you can the structure of Eliza's software. Then think about what you know about psychotherapy - what you have read, any first hand experience - and describe the information processing done by a human psychotherapist likely differs from the information processing in Eliza. 4. Consider the following definition of skill: "The more years of training an occupation requires, the more skilled it is." For the occupations listed below, do the following: (a) Classify them as "high-skill" or "low-skill" based on this definition. (b) Write down another definition of skill (you can pick one discussed in class) and re-classify these occupations according to that definition. Does the classification change?

Consider a very simple "two node" model in which natural gas is produced in region A and is transported by pipeline to region B. The price of natural gas in Region B is $6 per thousand cubic feet (Mcf) and the price of transportation service from Region A to Region B is $1/Mcf. a. If the market for producing gas in region A is perfectly competitive and there is a perfectly elastic supply of transportation service what will be the equilibrium price of natural gas in Region A? b. What will happen if the government places a cap of $4/Mcf on price that producers in Region A can charge for the natural gas they produce? Discuss how your assumptions about the shape of the competitive supply curve in Region A affects your answer. 2. Now consider a more complex natural gas supply and demand system such as the one we have in North America. There are multiple gas production areas and many consuming areas that are remote from production areas and rely on pipelines to transport gas to them. a. Assume that the price of natural gas at Henry Hub (Louisiana --- a gas producing area) is $5/Mcf and assume that the price of natural gas in Los Angeles (a gas consuming area) is $4/Mcf. Explain how such a price pattern can emerge? b. What incentives are there to expand pipeline capacity from producing areas in the Western U.S. to consuming areas in the Eastern U.S. 3. The United States maintains a Strategic Petroleum Reserve (SPR) that now contains 700 million barrels of crude oil. a. What factors would you take into account to design a policy to determine when and how much oil is released from the SPR? b. How would the expected supply behavior of OPEC affect your policy design?

Consider a very simple "two node" model in which natural gas is produced in region A and is transported by pipeline to region B. The price of natural gas in Region B is $6 per thousand cubic feet (Mcf) and the price of transportation service from Region A to Region B is $1/Mcf. a. If the market for producing gas in region A is perfectly competitive and there is a perfectly elastic supply of transportation service what will be the equilibrium price of natural gas in Region A? b. What will happen if the government places a cap of $4/Mcf on price that producers in Region A can charge for the natural gas they produce? Discuss how your assumptions about the shape of the competitive supply curve in Region A affects your answer. 2. Now consider a more complex natural gas supply and demand system such as the one we have in North America. There are multiple gas production areas and many consuming areas that are remote from production areas and rely on pipelines to transport gas to them. a. Assume that the price of natural gas at Henry Hub (Louisiana --- a gas producing area) is $5/Mcf and assume that the price of natural gas in Los Angeles (a gas consuming area) is $4/Mcf. Explain how such a price pattern can emerge? b. What incentives are there to expand pipeline capacity from producing areas in the Western U.S. to consuming areas in the Eastern U.S. 3. The United States maintains a Strategic Petroleum Reserve (SPR) that now contains 700 million barrels of crude oil. a. What factors would you take into account to design a policy to determine when and how much oil is released from the SPR? b. How would the expected supply behavior of OPEC affect your policy design?