If there's an increase in the future marginal product of capital in a large open economy, it causes the current account to ________ and saving to ________.

An increase in the MPC causes an increase in which of the following?

A) MPS B) spending multiplier C) savings rate D) exports E) aggregate supply

In the Keynesian view, the main source of economic fluctuations is

A) interest rates. B) investment. C) consumption. D) inflation.