A pigeon is confronted with two disks, one green, the other red. The bird receives food on a VI 20" schedule when it pecks the green disk, and on a VI 10" schedule when it pecks the red one. You predict that the bird will peck

Select all the correct answers. what steps can a nation take to achieve economic growth? invest in physical capital engage in international trade focus on increasing imports invest in human capital reduce the defense budget