The aggregate demand curve shows how real gdp purchased varies with changes in:

You are president of a large corporation. at a typical monthly meeting, each of your vice presidents gives standard area reports. in the past, these reports have been good, and the vps seem satisfied about their work. based on situational approach to leadership, which leadership style should you exhibit at the next meeting?

Suppose that a major city’s main thoroughfare, which is also an interstate highway, will be completely closed to traffic for two years, from january 2014 to december 2015, for reconstruction at a cost of $535 million. if the construction company were to keep the highway open for traffic during construction, the highway reconstruction project would take much longer and be more expensive. suppose that construction would take four years if the highway were kept open, at a total cost of $800 million. the state department of transportation had to make its decision in 2014, one year before the start of construction (so that the first payment was one year away). so the department of transportation had the following choices: (i) close the highway during construction, at an annual cost of $267.5 million per year for two years. (ii) keep the highway open during construction, at an annual cost of $200 million per year for four years. now suppose the interest rate is 80%. calculate the present value of the costs incurred under each plan.

True of false: the chancellor of a university has commissioned a team to collect data on students' gpas and the amount of time they spend bar hopping every week (measured in minutes). he wants to know if imposing much tougher regulations on all campus bars to make it more difficult for students to spend time in any campus bar will have a significant impact on general students' gpas. his team should use a t test on the slope of the population regression.