| A | B |
|---|
| Trickle-Down Theory | Fashion trends start among the upper classes and move down to the masses |
| Trickle-Up Theory | Fashion trends start among the young or lower income groups and move upward to older and higher income groups |
| Trickle-Across Theory | Fashion moves horizontally through groups at similar social levels |
| Jennifer Anniston's hairstyle from Friends | Trickle-down Theory |
| Grunge Look | Trickle-Across Theory |
| Fashion Cycle | Stages of in popularity of specific styles or shapes |
| Fads | Short-lived styles |
| "In-Fashion" | Style that lasts more than one season |
| Number of stages in Fashion cycle | 5 |
| 1st Stage | Introductory |
| High Prices | Introductory Stage |
| Rise | The fashion becomes more accepted |
| Peak | Prices lowered, style is at height of popularity |
