The Law of Diminishing Returns

Fields mutiple colors

In my post yesterday, I indicated that maximizing your net return per acre was more important than the most yield per acre.  One of our readers wrote a great comment regarding how their operation tries to maximize their yield to achieve the most net revenue per acre.

My post should have stressed that your farm operation should try to maximize your yield up to what I call the point of diminishing returns.  For example, if you can increase your yield by an extra 10 bushels (for corn) by spending $15 on good seed or fertilizer, then your return at $4 corn is $40/$15 or 2.67 to one.  As you do your analysis for your farm, anytime this number is greater than 2, it makes sense to spend the extra money.

If the number is between 1 and 2, then you need to crunch your numbers and get comfortable with your probability of the extra yield happening.  For example, if you think you can make an extra $20 per acre by spending $10, your ratio is 2 to 1, however, if the chance of this happening is 50%, your expected ratio becomes 1 to 1.  At this point, you are simply at the break even point and you are not receiving any extra to cover your overhead related to this extra cost.

If you were to chart your options related to maximizing your yield compared to your input costs, the return yield to cost would look very similar to the horsepower chart on my BMW motorcycle.  As I add RPM, the horsepower output increases at about a 45 degree angle up to about 8,000 RPM.  At this point, as I add more RPM, the horsepower output slightly increases and then as I get near the redline, the horsepower starts to drop off dramatically.

In your farm operation, try to determine where the extra yield maximizes the return to the bottom line.

  • Principal
  • CliftonLarsonAllen
  • Walla Walla, Washington
  • 509-823-2920

Paul Neiffer is a certified public accountant and business advisor specializing in income taxation, accounting services, and succession planning for farmers and agribusiness processors. Paul is a principal with CliftonLarsonAllen in Walla Walla, Washington, as well as a regular speaker at national conferences and contributor at agweb.com. Raised on a farm in central Washington, he has been immersed in the ag industry his entire life, including the last 30 years professionally. Paul and his wife purchase an 180 acre ranch in 2016 and enjoy keeping it full of animals.

Comments are closed.