The annual demand criteria were developed to identify the economic sweet spot in a particular climate between generation and conservation, identifying the point of diminishing returns of envelope upgrades. (energyvanguard.com)
However, like it or not, the series has had enjoyed ongoing success, albeit with diminishing returns with each successive instalment post number three. (hoopla.nu)
It is a case of diminishing returns on these scenes, and the filmmakers go to the well about three too many times. (alphaprimitive.com)