For a good where network externalities are present, having an early lead in the race for customers may be the only lead necessary to ultimately win the race for dominance in the good's market.

As residents of developing countries increase their chocolate consumption, the increased production of cocoa results in

A) increased opportunity cost of cocoa production. B) decreased opportunity cost of cocoa production. C) no change in production of other goods and services. D) increased production of other goods and services.

The critical value of a two-sided t-test computed from a large sample

A) is 1.64 if the significance level of the test is 5%. B) cannot be calculated unless you know the degrees of freedom. C) is 1.96 if the significance level of the test is 5%. D) is the same as the p-value.