On the costs of goods manufactured schedule, the item raw materials inventory (ending) appears as a(n) subtraction from raw materials purchases. subtraction from raw materials available for use. addition to raw materials purchases. addition to raw materials available for use.

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.