Compared to commercial banks and thrift institutions, finance companies are

Why do very small differences in annual growth rates amount to big differences in the degree of long-term economic growth?

A) because the slower-growing countries save too much B) because the annual growth rate is compounded over time C) because the faster-growing countries gain a political advantage over poorer countries, and use that advantage for their economic gain D) because the slower-growing countries don't export enough

Which oligopoly model(s) have the same results as the competitive model?

A) Cournot B) Bertrand C) Stackelberg D) Both Cournot and Stackelberg