If countries are highly influential upon each other, the correlations of their economic growth levels would likely be . A firm would benefit by diversifying sales among these countries relative to another set of countries that were not influential upon each other. high and positive; more close to zero; more high and positive; less close to zero; less

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.