In an economy where planned aggregate spending is given by PAE = 5,500 + 0.6Y - 20,000r, the interest rate is currently 5 percent (0.05). If potential output equals 11,750, the central bank must the interest rate to close the gap. reduce; expansionary reduce; recessionary raise; recessionary raise; expansionary

The prebisch–singer hypothesis concludes that: a. technology lowers the cost of manufactured products, so developing countries should see an increase in their terms of trade. b. developing countries experience a long-run decline in their terms of trade, as the demand for primary products in higher-income countries declines relative to their demand for manufactured goods. c. because of unfair trading practices, labor in developing countries is exploited. d. opec has been responsible for a slowdown in the world's standard of living.

As a result of a labeling mistake at the chemical factory, a farmer accidentally sprays weedkiller rather than fertilizer on half her land. as a result, she loses half of her productive farmland. if the property of diminishing returns applies to all factors of production, she should expect to seea. a decrease in the marginal productivity of her remaining land and an increase in the marginal productivity of her labor. b. an increase in the marginal productivity of her remaining land and an increase in the marginal productivity of her labor. c. an increase in the marginal productivity of her remaining land and a decrease in the marginal productivity of her labor. d. a decrease in the marginal productivity of her remaining land and a decrease in the marginal productivity of her labor.

You have just made your first $5,500 contribution to your retirement account. assume you earn a return of 10 percent per year and make no additional contributions. a. what will your account be worth when you retire in 45 years? (do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) b. what if you wait 10 years before contributing?