The statement that best describes the evolution of the express mail industry is which of the following? As the growth rate of the express mail industry has decreased, competitors have come to be more similar in terms of offerings and activities, leading to decreased competition. As the express mail industry has evolved, companies have innovated by making large investments, and the resulting efficiency improvements have driven smaller players out of the industry. The express mail industry is in the growth stage, and as such, companies continue to innovate to try to beat their rivals. As the express mail industry has evolved, the concentration of market share among large firms has decreased