Differences between product market and generic market?

The generic product-market includes a broad group of products that satisfy a general, yet similar, need. The starting point in determining product-market boundaries is to identify the particular need or want that a group of products satisfy. Since people with a similar need may not satisfy the need in the same manner, generic product-markets are often heterogeneous, containing different end-user groups and several types of related products.

The product-type product-market includes all brands of a particular product type. The product type is a product category or product classification that offers a specific set of benefits intended to satisfy a customer's need or want in a specific way. Differences in the products within a product-type product-market may exist, creating product-variants.