After Sunshine Systems merged with RTD Enterprises, company executives noticed that due to increased employee collaboration between the two units, costs were down and revenues increased within both areas. This is an example of which element of competitive advantage?

What could cause a production possibilities curve to move down and to the left? a.) a nation loses land after being defeated in a war. b.) an increase in the use of computer technology speeds up production c.) a baby boom 20 years ago results in a large number of young adults in the population today. d.) thousands of investors from overseas invest money in a nations economy.