In a presentation about Serbia’s future entry into the European Union, the speaker indicates that the effects of trade creation will be equal to about 2 percent of Serbia’s GDP, the effects of trade diversion will be equal to about 1 percent of Serbia’s GDP, and the overall effects on Serbia will be a gain in national well-being equal to about 3 percent of its GDP. What do you think is the best explanation of how these numbers fit together? Is anything missing that you can fill in to make better sense of the numbers?