Which of the following tests can be used to check for cointegration between two series?

Jeanie Reuter and Janet Rothman are tenants in first and second floor apartments. Jeanie practices her piano lessons in the morning, while Janet practices aerobics on drum beats at the same time. Further assume that the value of practice to Jeanie is $10 while the value of aerobic exercises to Janet is $6 . If Jeanie has the right to practice piano peacefully, which of the following will be a

feasible solution to the problem? a. Janet will choose a different time for practicing aerobics. b. Janet will pay Jeanie $6 to make her change the time for piano practice. c. Janet will pay Jeanie $10 to make her change the time for piano practice. d. Jeanie will pay Janet $4 to make her change the time for aerobics exercises.

A government is considering undertaking one or more construction projects. The estimated marginal cost and benefit of each project are given in the table.ProjectMarginal Cost ($M)Marginal Benefit ($M)1$8$11211133181742823Refer to the above table and information. What is the total cost and total benefit of projects 1, 2, and 3?

A. Total cost is $37 million and total benefit is $41 million. B. Total cost is $24 million and total benefit is $27 million. C. Total cost is $65 million and total benefit is $66 million. D. Total cost is $18 million and total benefit is $19 million.