1. In the free enterprise system, the profit motive is basically a "decrease for increase", which means that the suppliers have to decrease their prices to increase their consumers because of their competitor's prices. Their impact makes the businesses income basically be on a roller coaster.
2. The price factor is based on whether the industry is mature, whereas the focus is is on lowering prices. An established firm can lower prices because it benefits from lower costs and more experience. The nonprice factor is for the younger  industries where price is not a strong factor. Other factors such as quality, service, and reputation, are more important.
3. Wants are things that you can do without on the daily basis. For example, a young girl may go shopping and see a top that they like, their first quote would be, "I need this top", whereas they already have many tops in their closet and they just want it because they like what they see. Needs are things that you cannot do with out, such as air, water, food, a place to sleep. The basic essentials in life.
4. The relationship between cost and profit is the fact of how much you pay for the product determines how much you retail the product for. The relationship between supply and demand is that the company must supply depending on how much the demand is.