Who stated "Effectiveness is doing the right thing, but efficiency is doing the thing right"?

The statement "Effectiveness is doing the right thing, but efficiency is doing the thing right" is attributed to Peter Drucker, a prominent figure in the field of management theory. Drucker emphasized the importance of distinguishing between effectiveness and efficiency as key components of good management practices.

In this context, effectiveness refers to the ability to achieve desired outcomes and goals, meaning that a manager or organization focuses on the right activities that align with its objectives. On the other hand, efficiency relates to performing tasks in the best possible manner with minimal waste of resources, ensuring that processes are optimized.

Drucker’s insights encourage managers to not only focus on getting things done but also to make sure that they are directing their efforts toward the most valuable and strategic activities, thereby driving overall organizational success. This distinction remains a fundamental principle in management today, illustrating why his concepts continue to resonate with current practices and theories.