For successful logistics operations, what principle focuses on effectiveness while minimizing resource expenditure?

The principle that focuses on achieving effectiveness in logistics operations while minimizing resource expenditure is economy. This principle emphasizes the importance of accomplishing tasks and objectives using the least amount of resources necessary, including time, manpower, and materials. By prioritizing economy, logistics can maintain high levels of efficiency, ensuring that the operations are not only effective in meeting their goals but also mindful of costs and resource allocations.

Economy ensures that resources are utilized judiciously, which is especially crucial in large-scale combat operations where resources might be limited or under significant pressure. Effective logistics operations must balance performance outcomes with the sustainability of resource use to ensure that mission objectives can be achieved without overextending support capabilities.

In comparison, integration focuses on the coordination of various logistics operations and resources towards a unified goal, while responsiveness emphasizes the ability to react quickly to changing conditions and requirements. Continuous improvement is about the ongoing effort to enhance processes, systems, and performance over time. While each of these principles plays a vital role in logistics operations, economy is specifically geared toward the effective use of resources, aligning directly with the question's focus.