State the negative effect that couples with no children will have on the food, clothing & automobile industry?

answer should be based on current trends in the marketing industries and the buying power of people, base on their income level.State the negative effect that couples with no children will have on the food, clothing %26amp; automobile industry?
First off current treads is what is wrong with classical economic theory. Negative effects? Sure if you want to interpret it in a simplistic purely consumption point of view. However couples with no children tend to have more disposable income and therefore spend it in different ways other than processed food, wal-mart and buying mini vans. Economists need to think more in terms of sustainability.State the negative effect that couples with no children will have on the food, clothing %26amp; automobile industry?
supply and Demand! no demand ...sparse supply!
duh...less people, less consumer goods sold...boo hoo, let's all go get knocked up every year so there will be enough consumers around in the future! how dare you not breed more consumers!