Economists have remained skeptical of the argument that the short-run Phillips curve is vertical for all of the following reasons except: A. workers and firms may not have rational expectations. B. workers and firms may have long term contracts. C. workers and firms may not be able to accurately use information from the Fed. D. workers and firms may adjust prices and wages quickly.

Double corporation acquired all of the common stock of simple company for

Suppose a holiday inn hotel has annual fixed costs applicable to its rooms of $1.2 million for its 300-room hotel, average daily room rents of $50, and average variable costs of $10 for each room rented. it operates 365 days per year. the amount of operating income on rooms, assuming an occupancy* rate of 80% for the year, that will be generated for the entire year is *occupancy = % of rooms rented

Suppose you hold a portfolio consisting of a $10,000 investment in each of 8 different common stocks. the portfolio's beta is 1.25. now suppose you decided to sell one of your stocks that has a beta of 1.00 and to use the proceeds to buy a replacement stock with a beta of 1.55. what would the portfolio's new beta be? do not round your intermediate calculations.