Which type of barrier to entry allows an electric company to maintain a monopoly over the production of electricity?

Briefly explain how the miserliness of Ebenezer Scrooge might actually be beneficial for economic growth

What will be an ideal response?

The present value of $1 payable in two years is:

a. $1. b. $1/(1 + 2r). c. $1/(1 – 2r). d. $1/(1 + r)2.