A negative externality or spillover cost (additional social cost) occurs when Group of answer choices firms fail to achieve allocative efficiency. firms fail to achieve productive efficiency. the price of the good exceeds the marginal cost of producing it. the total cost of producing a good exceeds the costs borne by the producer.

When earning simple interest on money you invest, which statement is true? a. as time goes on and your bank account grows, you earn more interest. b. as time goes on and your bank account grows, you earn less interest. c. as time goes on and your bank account grows, you earn the same amount of interest. d. as time goes on and your bank account grows, you stop earning interest.

How does the economy of cuba differ from the economy of north korea? in north korea, the government’s control of the economy has begun to loosen. in cuba, the government maintains a tight hold over the economy. in cuba, the government’s control of the economy has begun to loosen. in north korea, the government maintains a tight hold over the economy. in north korea, there is economic uncertainty in exchange for individual choice. in cuba, there is economic security in exchange for government control. in cuba, there is economic uncertainty in exchange for individual choice. in north korea, there is economic security in exchange for government control.\

The wall street journal reported that walmart stores inc. is planning to lay off 2,300 employees at its sam's club warehouse unit. approximately half of the layoffs will be hourly employees (the wall street journal, january 25-26, 2014). suppose the following data represent the percentage of hourly employees laid off for 15 sam's club stores. 55 56 44 43 44 56 60 62 57 45 36 38 50 69 65 (a) compute the mean and median percentage of hourly employees being laid off at these stores. (b) compute the first and third quartiles. (c) compute the range and interquartile range. (d) compute the variance and standard deviation. (e) do the data contain any outliers? (f) based on the sample data, does it appear that walmart is meeting its goal for reducing the number of hourly employees?