What factors affect the elasticity of a product?

The elasticity of a product is influenced by several factors, including the availability of substitutes, the proportion of income spent on the product, and the necessity versus luxury nature of the product. If there are many close substitutes available, demand tends to be more elastic. Additionally, products that take up a larger portion of a consumer's budget or are considered luxuries typically exhibit greater elasticity. Other factors include time frame for adjustment and consumer preferences.