Suppose that Mr. Greengenes, a farmer and genetic engineer, develops a new method for growing corn that decreases the cost of growing corn by $300...

Suppose that Mr. Greengenes, a farmer and genetic engineer, develops a new method for growing corn that decreases the cost of growing corn by $300 per acre. Greengeness landlord rejoices, saying, According to the leftover principle, you will pay me $300 more in rent. Is the landlord correct?