If an economy's investment (I) is $800, depreciation (δ) is $150, and its savings (S) is $600, what is the change in the capital stock (ΔK) over a period?A.$150B.$250C.$450D.$650

Suppose that the per-worker production function y = f(k) = k0.5, that the saving rate is s = 0.2, and that the depreciation rate is δ = 0.02. If k = 49, then the capital stock per worker will:be impossible to compute given then information available.remain the same.decrease.increase.

A small economy starts the year with $1 million in capital. During the course of the year, gross investment is $150,000 and depreciation is $50,000. What is the economy?s capital stock at the end of the year?

Suppose an economy has this production equation Y=F(K, L)=K0.4L0.6. The saving rate is 0.2, the depreciation rate is 0.05. Calculate the capital per worker, output per worker, and consumption per worker at a steady state. (Please keep two decimal places.)

If the capital stock per worker is greater than the steady-state capital stock per worker, then the change in capital is:positive; consumption decreases over time, and so does investment.positive; consumption increases over time, and so does output.negative; investment increases over time, but depreciation increases.negative; consumption decreases over time, and so does output.

Last year, Deon opened an investment account with $8600. At the end of the year, the amount in the account had decreased by 7.5%. How much is this decrease in dollars? How much money was in his account at the end of last year?Decrease in amount: $Year-end amount: $