One of the benefits of specialisation includes:

The benefit of specialization in the context of production and economics is that it allows workers or firms to focus on a specific task or role, thereby increasing efficiency and expertise. By concentrating on a particular area, individuals can become highly skilled and proficient, leading to enhanced output.

When specialized equipment is utilized, productivity often increases because the tools and machinery are specifically designed for the tasks at hand, streamlining production processes. This efficiency makes it possible to produce more goods or offer services more quickly and at a lower average cost.

The other options highlight misconceptions about specialization that do not align with its true benefits. While decreased productivity due to repetition, lower production costs for all firms, and an inability to focus apply to different contexts, they do not accurately reflect the advantages that specialization brings, such as the effective use of specialized equipment leading to increased output.