Friday, August 17, 2018

Crop Forecasts And Their Reliability As A Planning Tool For Agricultural Investors


Benedict T. Palen, Jr
There is always much anticipation when the USDA issues long term forecasts for grain supply, demand, and prices.    Some market participants seize on trends that they believe they detect when, say, acreage of a certain crop declines over a couple of year period, or when there is an apparent large amount of over supply of one grain or the other.

From the perspective of a farmer, and market participant for 40 years, all of these forecasts need to be taken with a grain of salt.    One need only look at, say, the USDA price forecasts for a 10 year period for a commodity, and then look back to compare the actual prices during that period, to see, that these long term forecasts are inherently flawed.   

As another example, there were articles in some publications within the last year predicting the demise of wheat production in Kansas (which has long been a leading wheat producer in the USA), all because of low prices for wheat, and shifts to other crops.  Ah, some writers have not been around long enough to know how quickly things can change in agriculture! This year, the crop in Kansas was large, and wheat prices have rebounded to profitable levels for growers.

How then does one considering an agricultural investment, make sense of all of these forecasts when building a financial model?   The answer has several parts. First, and perhaps foremost, one must understand the long view of ag markets; there are almost always unexpected events in some area of the world that impact production, and prices.  

History teaches us to expect the unexpected.  Second, to get a grasp of the “big numbers” that are often thrown around when talking about usage, it is helpful to break down the numbers into the number of days of consumption that that usage, or supply, really means.   And then taking that number and figuring out the per capital availability around the world of a certain commodity really brings things down to an understandable level.  
When one realizes, for instance, that there is a 60 day supply of soybeans at a given time, and that the market price is X, it is a bit easier to see a scenario where the supply drops to, say, 45 days, and what the impact on price is at that point.   Those hundreds of millions of bushels of supply mentioned in the headlines of some article become easier to get one’s arms around when it is viewed in days of supply.  To use a pun, that is when the numbers come down to earth. 

Third, one must keep in mind the big picture, and that is the world’s ability to feed itself is precariously balanced.   There are real world limitations on land use, water availability, and infrastructure, that are often overlooked when some writers suggest that there is great potential in some developing nations for food production.    

Some of this makes for great headlines, such as when Asian investors announced plans to develop enormous acreages for farms in remote parts of the world, with the suggestion that that would somehow adversely impact grain prices in established areas.  But, unless one digs into the details, it would not be known to most that those plans were not much more than pipe dreams.
Agriculture is, and always will be, a long term asset.  Investors should not be swayed by short term trends, or by the efforts of some to predict prices over a long term horizon.   My advice is to look back over, say, the last five years, and understand supply, demand, and their relation to pricing—that is the most sensible predictor, in my view, because over that time period there will have been any number of events in some parts of the world that have impacted prices in a good or negative way.  It is not the perfect approach, but at least it offers a sound rationale for making investment decisions.

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