1. Zaggy Zargawhoop has an idea for a new business. In order to develop his idea, he needs to invest $600 today. Zaggy's idea will pay off $690 next year for certain. Suppose that Zaggy has no savings to fund his idea and has to borrow money from the bank. a. Suppose that the interest rate for borrowing and for lending is 12%. Should Zaggy borrow money from the bank to fund his idea? b. Suppose that the interest rate for borrowing and for lending is 22%. Should Zaggy borrow money from the bank to fund his idea? Now suppose that Zaggy has $600 in his bank account. c. Suppose that the interest rate for borrowing and for lending is 12%. Should Zaggy withdraw his savings to fund his idea? d. Suppose that the interest rate for borrowing and for lending is 22%. Should Zaggy withdraw his savings to fund his idea? e. Does the method of financing (whether through savings or debt) appear to affect the relationship between the interest rate and the decision to undertake investment? Explain.

5. (b) Are the following statements true or false? Justify your answer (simply saying true or false will carry no credit). i) "A labor market dominated by a single buyer achieves Pareto efficiency if the buyer operates as a perfectly discriminating monopolist". ii) "A cake is divided between two individuals; Pareto optimality requires that they receive equal shares".

4. (0,.7 or 10) Provide an example of product differentiation using any industry you want (e.g., fast food, shoes, clothing, etc.)

You are analysing the annual revenue from the top 5 coffee maker models manufactured in your company, and want to know the comparative revenue made from each model. Rank these 5 coffee makers based on the revenue made this year, from highest to lowest.

Select a peer-reviewed article that focuses on the cultural differences leadership/management will need to handle in a global business. The article must be published within the last five years.    Examples of journals with peer-reviewed articles include Critical Perspectives on International Business, International Journal of Management, Journal of International Business Studies, Journal of International Business Research, Journal of International of Trade & Global Business Perspectives, and Management International Review. Explain why you selected this article. Discuss the issues it raises and explain the cultural differences leadership/management will need to handle in a global business. cite the article

Whichofthefollowingstatementsis(are)correct? (x)  A payroll tax is a tax on the wages that a firm pays its workers and in the United States the payroll tax is also referred to as a social insurance tax. (y)  The payroll tax differs from the individual income tax in the U.S. because the payroll tax is primarily earmarked to pay for Social Security and Medicare. (z)  Taxes on specific goods such as cigarettes, gasoline, alcoholic beverages and tires are called excise taxes. (x), (y) and (z) (x) and (y) only (x) and (z) only (y) and (z) only (x) only

（D）Detailed calculation steps

PROBLEM (1) (Rational Choice) Suppose your friend is about to buy a digital camera. A digital camera is identified with three dimensions; 1) resolution (in megapixels), 2) optical zoom (a real number) and 3) battery life (a number of hours). For example, A = (8, 4, 20) is a camera with 8mp resolution and x4 optical zoom and 20 hours of battery life. When he goes into a store, he faces a menu of cameras. When comparing two cameras if camera A is weakly better than B on at least 2 dimensions, it is weakly preferred to the other; written A ≥preferred B. a) Is this preference relation complete? Transitive? Prove it or show an example where the property doesn't hold. b) Suppose the agent chooses from any menu of cameras, a camera that is (weakly) preferred to all other cameras in the menu. Would this choice function be rational, given (a)? Briefly explain your reasoning.