Employees of brokerage firms that rely on forecasting future profits of firms in order to forecast future stock prices are called

Total factor productivity in railroads _____________ in the 20 years prior to the Civil War

a. decreased slightly b. remained largely unchanged c. increased by about 25 percent d. more than doubled

A perfectly elastic supply curve is

A) an upward sloping straight line that intersects the origin. B) horizontal. C) vertical. D) downward sloping.