The word fashion evokes images of French dress designers presenting their new collections of expensive women's clothes in Paris. However, for many products such as everyday clothes, automobiles, furniture, dishes, and floor coverings, quality is defined as much by aesthetics as by utility. Often the utility of the product is assumed and the aesthetics are what change the expectations of customers.
Trends in public opinion have an aspect of fashion to them, and as such are also a source of ideas for new or redesigned products. Health, safety, or security concerns may dominate public discourse. The economic environment will influence whether people prefer luxury or frugality in products that they buy.