Final answer:
The strategy when a firm markets products under its own name and that of a reseller to target different segments is called a multi-branding strategy.
This is often seen in monopolistic competition where product differentiation is key to gaining market presence against established brands.
Step-by-step explanation:
When a firm markets products under its own name and that of a reseller because each attracts different market segments, this approach is called multi-branding strategy.
In the context of monopolistic competition, firms may utilize this technique to access different consumer groups and leverage product differentiation.
This differentiation strategy becomes a crucial component in monopolistic markets where many firms compete with distinct styles, flavors, or brand names but also face stiff competition from others offering similar yet differentiated products.
Establishing a significant brand name can entail substantial marketing and advertising efforts, as seen in the competition with well-established brands like Coca-Cola or Pepsi.