That's a hard one to answer but from all my reading it would seem there was one main reason. The Berbers were nomads so they never were able to be collectively together to form an army against invaders. Therefore, the Berbers were constantly being conquered by someone. Each time they had to learn new laws set out by the conquerors. When the Arabs came with their mighty army, they knew they couldn't fight so giving in was in an odd way a protection system of kinds.
It depends on what career you take on. Psychology is relevant when you're working with people. Since Psychology is a study of the brain and how it works, you can benefit from knowing how certain people think. In marketing, you can better sell your product if you know how the client is thinking. If you go into the medical field, you can know how to explain certain procedures by knowing how your patient is working. So psychology can beneficial in any and all fields of practice. <span />
Answer: Fiscal policy can decrease unemployment by helping to increase aggregate demand and the rate of economic growth. The government will need to pursue expansionary fiscal policy; this involves cutting taxes and increasing government spending.
