when does a diminishing return take into account what model does diminishing return take into account? is shelf space squared when examining diminishing returns in regression what is the difference which of these is not significant in a regression model? when is diminishing return significant which is the squared value of shelf space when to include diminishing returns if the squared shelf space is important, does it mean that there is a diminishing return? when is diminishing return included in regression when are diminishing returns important in regression when do i include sql sql sql sql sql sql which squared model is used to investigate diminishing returns? what model takes diminishing returns into account why do i find the diminishing return what is meant by diminishing return in regression which model does the diminishing return include diminishing return definition if the shelf space is squared does a diminishing return mean what does squared shelf space mean in regression