How does rivalry in the marketplace relate to the latter's economic competitiveness?

Rivalry refers to the intensity in which companies pressure other companies to gain more customers than them. Rival goods in the market refer to the items that, when consumed by a single consumer, prevent other consumers from consuming it. For instance, when a person is using a hammer, other people cannot use the hammer simultaneously. Rivalry and economic competitiveness are related to the market. For instance, economic competitiveness is a result of rivalry in the market. When firms sense rivalry in the market, they produce the same goods with a different quality to target the consumers. Besides, firms strive to lower the costs of goods and increase the quality to attract more customers.