> Citation? What you fail to realize is that lower efficiency can induce more spending. Please explain to me how a $1 ad which generated $0.01 in marginal prof

> Citation? What you fail to realize is that lower efficiency can induce more spending. Please explain to me how a $1 ad which generated $0.01 in marginal profit, but now generates -$0.01 in marginal profit will continue to be funded. I'd love to know.