Technology and Structural Changes in Agriculture Since 1900
Otto Doering, Purdue University
We often rush ahead without the benefit of perspective on what we are doing.
Perspective prepares us for thoughtful discussion rather than combative
rhetoric. Even though history doesn’t often give us the right answer for our
particular problem, it does teach us which are the right questions to ask. If we
can ask the right questions we have overcome one of the biggest impediments to
successful problem solving.
- As we look at the United States, we are a true Continental economy. River,
canal, and then rail resulted in lowered transportation costs for bulky
goods to the point where natural production advantage predominated. The
diversity of our agricultural continent is almost unique, as is the
confluence of good soils, adequate rainfall, favorable long seasons, and
moderate temperatures in the agricultural heartland. We have most everything
from Mediterranean climates to monsoon climates, which, because of our
inexpensive transportation, allow a high degree of specialization in
agriculture. (chart 1)
- While our national population has been growing steadily, the population on
farms peaked in the early to mid 1900s. At the same time the proportion of
U.S. population on the farm has generally declined from the high 90s as a
percentage to less than 2 percent today. (charts 2,3,&4) This is
no accident. It was driven by technology in agriculture and the growing
opportunities for rural people outside of agriculture.
- We suffer from an abundance of riches. Our superb resource base, coupled
with fruitful investments in technology has resulted in an almost constant
overproduction beyond our national needs. (charts 5&6) This is
something we have tried to address in many different ways. The technology
pushing our productivity was initially labor saving (charts 7&8)
and is now increasingly yield enhancing. (chart 9) Both of these have
involved major changes in relative input use. (chart 10)
- Our constant over-production resulted in the level of farm income being a
continuing concern. This was an even greater concern in the last Century.
The Populist movement represented the struggle of rural American to gain
"parity" with the incomes and living standards of those off of the
farm. (Chart 11) Populist leaders saw the need to raise less corn and
more Hell! In the early 20th Century we had a golden age for
agriculture from 1910 through World War I until 1920. This came about at the
time of the closing of the frontier, with immigrants flooding the cities and
with industrialization employing growing urban populations and drawing rural
folk from the land. This collapsed with world food surpluses in 1921. We
tried to deal with the collapse with the Agricultural Adjustment Act, soil
conservation programs, and other means, but it was World War II that
provided the ultimate demand stimulus for improvement. War also profoundly
changed the composition of the labor force making women critical
participants and changing food consumption patterns. Today, farm incomes are
similar to non-farm, yet, the issue of adequate returns remains.
- Those in agriculture have often seen foreign markets as key to agriculture’s
income prospects. However, we increasingly see that world weather, levels of
production, and economic conditions shape our prospects - not our own
decisions about boosting exports. We see periods where we move high volumes
abroad, but at low prices. We see international markets increasingly
competitive for one reason or another. The role of exports is more complex
than we have thought in the past. (chart 12)
- The size of the land base for agriculture has been relatively constant
over the years, though its location has changed. We have settled few new
lands since the beginning of the last Century. The encroachment on existing
agricultural lands has been compensated for by land no longer needed to feed
horses and mules to power agriculture. The cropland base stays the same, but
moves around. (chart 13)
- Along with new technology came the capacity to destroy our resource base.
Taking care of our private farmlands has been a national concern since the
Dust Bowl of the 1930s. Most expenditure on these private lands in the 1930s
was also designed to get cash to rural areas. Thus, programs stressed
payments to individuals to improve lands or to conserve them. Today, more
emphasis is on specific land retirement programs and technical assistance,
but total public expenditure has declined. (chart 14)
- New technology also has forced us to have an increasing concern with water
quality. This relates to erosion and the transport of chemicals and
fertilizers. These issues are driven by the development of technology and
the increase in productivity. A good example is the high value in use of
nitrogen fertilizer with hybrid seed since 1945. The Mississippi Basin
illustrates our improved efficiency as high yield technology matures and we
learn how to manage it. However, we still cannot control weather, which is
now a key factor in the variability of nitrogen losses. (chart 15)
- Since the Populist movement of the 1800s, there has been a deep concern
with structural issues in agriculture. We tend to forget that the issue is
not structure per-se, the issue really is who will control agriculture. Who
owns the resources, who receives the bulk of the returns from an enterprise
or a product as it goes from seed and inputs to the consumer or industrial
user. The Populists focused on railroads, packers, and grain merchants and
left us the legacy of the Interstate Commerce Commission, the Sherman
Anti-trust Act, the Packers and Stockyards Act, the Clayton Act, and Capper-
Volstead. In spite of this we see change in the structure and
characteristics of markets. A recent example is the precipitous decline of
the importance of terminal markets and rise of contracting for hogs in the
Midwest. There is concern about producer concentration. But, there has been
a high level of concentration here since the early 1900s. (Chart 16)
A key issue is producer independence in the face of vertical integration and
coordination. The concerns we face today about structure reflect the
concerns of the 19th and 20th Centuries, but with many
new characteristics we will have to grapple with. I do not believe we have
had a technology in the past with as pervasive a prospect for shaping
ownership, control, and the distribution of profits - from input to final
user - as biotechnology. The gut issues are the same – but, the vehicle,
its power, and its drivers different – very different from Swift’s
invention of the refrigerated railcar. Our challenge is in understanding
this difference even though many key questions remain the same!
- Finally, returning to the concern of farmers about farm incomes and the
rewards farmers receive for their labors compared with those outside of
farming. Farmers have also had a concern with the farm share of the value of
goods sold to consumers or industrial users. While our earlier chart (#11)
shows that farm incomes are parallel to non-farm incomes, we do see a
downward trend in the farm value of products as compared with retail food
prices since the 1970s. (Chart 17) This is disturbing to many and I
am not sure we fully understand the reasons or are asking the right
questions. The change in relative rewards is a symptom. The key issue is
whether this results from changes in the structure of the sector or from
other causes.
Concluding Observations
In the 20th Century we made amazing progress in productivity. We
also started an effort to protect the natural resource and environmental base on
which our agricultural productivity depends and tried to ensure equal access to
information and markets.
On other fronts we continued dealing with critical issues that were passed on
to us by those in the 19th Century. We still have a continuing
concern with farm incomes. We still face the dilemma of the role of trade and
external forces as they shape farm incomes and the prospects for our domestic
producers.
We also continue the 19th Century concern for who controls
agriculture. Who reaps what proportion of the rewards and benefits as we move
from inputs, the provision of land, the provision of labor, and all the other
contributors to the process that brings a final product to the consumer or
industrial end user? We are less proactive about this for other sectors of the
economy. There are reasons why agriculture is very different and has become more
of a direct focus for national concern and intervention. We need to understand
these as we think about upcoming farm legislation that should look forward
rather than attempt to solve past problems as many of our farm bills have done.
As Howard Tolley looked back from the vantage point of the 1940 Yearbook
of Agriculture, he observed that good agricultural policy should:
- Encourage and assist farmers who produce goods for sale on a commercial
scale;
- Assist those disadvantaged in agriculture; those suffering drought,
subsistence farmers, and others at a disadvantage within agriculture itself;
- Undertake activities to encourage better land use (including conservation)
and more efficient production.
Tolley’s conclusion in 1940 was that the policies of the New Deal had
accomplished a certain amount helping commercial agriculture, but that more
effort needed to be applied to the other goals. Our questions need to be:
What are the goals for our agricultural policy in the coming Century?
Where have we not done enough in the past? Where do we need to do more, and
what is it we need to do in the future?
Are we sure we are looking forward and treating the causes and not symptoms
of the problems we face?
CHARTS
Chart 1

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Chart 17
