What are the examples of economy and economics

You hold a diversified $100,000 portfolio consisting of 20 stocks with $5,000 invested in each. the portfolio's beta is 1.12. you plan to sell a stock with b = 0.90 and use the proceeds to buy a new stock with b = 1.50. what will the portfolio's new beta be? do not round your intermediate calculations.

10. problems and applications q10 a market is described by the following supply-and-demand curves: qsqs = = 2p2p qdqd = = 300â’p300â’p the equilibrium price is $ and the equilibrium quantity is . suppose the government imposes a price ceiling of $90. this price ceiling is , and the market price will be $ . the quantity supplied will be , and the quantity demanded will be . therefore, a price ceiling of $90 will result in . suppose the government imposes a price floor of $90. this price floor is , and the market price will be $ . the quantity supplied will be and the quantity demanded will be . therefore, a price floor of $90 will result in . instead of a price control, the government levies a tax on producers of $30. as a result, the new supply curve is: qsqs = = 2(pâ’30)2pâ’30 with this tax, the market price will be $ , the quantity supplied will be , and the quantity demanded will be . the passage of such tax will result in .

Mike, the chief executive officer (ceo) of a retail chain, wanted to keep costs low. to set an example for others, he drove his own car and furnished his office with plain, metal desks. in this case, mike was displaying: