What type of production is characterized by long runs of standardized products?

Mass production is characterized by long runs of standardized products, making it the correct choice. This approach involves the manufacturing of large quantities of identical items, which minimizes the production costs and maximizes efficiency. Companies that employ mass production typically use assembly lines and specialized machinery, allowing them to produce high volumes of goods quickly and at a lower cost per unit.

In contrast, job production refers to the creation of a single product or a small batch tailored to specific customer requirements, which is not standardized. Batch production, while also involving a group of products being made together, doesn't focus on the long runs of the same item as mass production does. Custom production emphasizes highly personalized items made to individual client specifications, rather than the standardized and repetitive nature of mass production.