Stanford University

Innovation

Africa's Food Systems in 2030

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Paul Collier will talk about how to manage the difference between helpful and damaging commercialisation, and puts forth three arguments. First, we need to face the tough reality that African food production has failed to keep pace with demand over the course of several decades, suggesting that there is a deep problem with respect to innovation and investment given the way African agriculture has been organised. Second, we need to accept that climate change, population growth, and income gains from natural resources will all stress this imbalance further: the prospect is for widening food deficits with business as usual. Third, two major changes are afoot. Globally, the model of commercial tropical agriculture pioneered in Brazil has demonstrated that output can be raised very substantially by changing the mode of organisation. Africa is now starting to open land markets to large foreign management. Superficially this looks like Brazil2, but it may instead be a wave of speculative acquisitions triggered by the price peaks of 2008.

Collier is the Director of the Centre for the Study of African Economies and Professor of Economics and Public Policy at the Blavatnik School of Government, Oxford University. He is currently Advisor to the Strategy and Policy Department of the IMF, advisor to the Africa Region of the World Bank; and he has advised the British Government on its recent White Paper on economic development policy. He has been writing a monthly column for the Independent, and also writes for the New York Times, the Financial Times, the Wall Street Journal, and the Washington Post. His research covers the causes and consequences of civil war; the effects of aid and the problems of democracy in low-income and natural-resources rich societies.

Derek Byerlee's talk will lay out a number of models of inclusive agribusiness growth, grouped into three categories (i) institutional arrangements for improving productivity of smallholders operating in spot markets, (ii) various types of contract farming arrangements, and (iii) large-scale farms that generate jobs and/or include community equity shares. The institutional and policy context as well as commodity characteristics that favor these models are discussed within a simple transactions cost framework. He will also discuss cross-cutting policy priorities to enable the growth of commercial agriculture and agribusiness. These include continuing reforms to liberalize product and input markets, access to technology and skills, stimulating financial and risks markets, securing land rights, and investment in infrastructure through public-private partnerships. 

Byerlee has dedicated his career to agriculture in developing countries, as a teacher, researcher, administrator and policy advisor. He has lived and worked for a total of 20 years in the three major developing regions-Africa, Asia, and Latin America. After beginning in academia at Michigan State University, he spent the bulk of his career at the International Maize and Wheat Improvement Center (CIMMYT). There as a economist and research manager he made notable contributions in forging a new spirit of collaboration between scientists, economists and farmers. He also published widely on efficiency of research systems, spillovers, and sustaining productivity in post green revolution agriculture. After joining the World Bank in 1994, he has applied his experience of research systems to finding innovative approaches to funding and organizing agricultural research, including emerging challenges in biotechnology policy. Since 2003, he has provided strategic direction and led policy world for the agricultural and rural sector in the World Bank.

 
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Paul Collier Director, Centre for the Study of African Economies, Oxford University Speaker
Derek Byerlee Independent Scholar, Director, 2008 World Development Report Speaker
Symposiums
Global Food Policy and Food Security Symposium Series

Searching for Solutions in Aquaculture: Charting a sustainable course

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Aquaculture is currently the fastest growing animal food production sector and will soon supply more than half of the world’s seafood for human consumption. Continued growth in aquaculture production is likely to come from intensification of fish, shellfish, and algae production. Intensification is often accompanied by a range of resource and environmental problems. We review several potential solutions to these problems, including novel culture systems, alternative feed strategies, and species choices. We examine the problems addressed; the stage of adoption; and the benefits, costs, and constraints of each solution. Policies that provide incentives for innovation and environmental improvement are also explored. We end the review by identifying easily adoptable solutions and promising technologies worth further investment.

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Annual Reviews Environment and Resources
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Dane Klinger
Dane Klinger
Rosamond L. Naylor
Rosamond L. Naylor
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Jennifer Burney named National Geographic Explorer of the Week

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Jennifer Burney
Jennifer Burney
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Jennifer Burney, named a National Geographic Emerging Explorer in 2011, continues her work on agricultural solutions for struggling farmers. She observes, for example, that “as great as local organic food may be in my own kitchen, we’ll never feed the whole world that way. Like it or not, ‘Big Agriculture’ is why we’ve been able to sustain a hungry planet; and thanks to investments in technology, significant climate impact has been mitigated.” One key contribution she made was introducing solar irrigation to farmers in Benin, Africa.

Click here to read full interview.

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Water and agriculture in a changing Africa: What might be done?

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Effective water management is one key element of agricultural innovation and growth. This talk: outlines evolving and changing good global practices with respect to water management and agriculture; examines developments in both water and agriculture in Africa; and suggests avenues which might be explored in improving water management and increasing agricultural productivity in Africa.

 

 is the Gordon McKay Professor of the Practice of Environmental Engineering and Environmental Health at Harvard University where he directs the Harvard Water Security Initiative. He teaches undergraduate and graduate courses on water management and development. In 2010 he was nominated for the Joseph R. Levenson Prize for exceptional teaching of Harvard undergraduates.

Briscoe's career has focused on the issues of water, other natural resources and economic development. He has worked as an engineer in the government water agencies of South Africa and Mozambique; as an epidemiologist at the Cholera Research Center in Bangladesh; and as a professor of water resources at the University of North Carolina. In his 20-year career at the World Bank, he held high-level technical positions, including Country Director for Brazil (the World Bank’s biggest borrower). Mr. Briscoe's role in shaping the governance and strategy of the World Bank is the subject of a chapter in the definitive recent history of the Bank, Sebastian Mallaby's The World's Banker (Penguin, 2006).

 is an Assistant Professor of Science, Technology, Engineering, and Policy in the School of International Relations and Pacific Studies at the University of California, San Diego. She is also an affiliate of Stanford University's Center on Food Security and the Environment (FSE), where she was previously a postdoctoral researcher. Jennifer is a physicist by training whose research focuses on simultaneously achieving global food security and mitigating climate change. She designs, implements, and evaluates technologies for poverty alleviation and agricultural adaptation, and she studies the links between energy poverty and food and nutrition security, the mechanisms by which energy services can help alleviate poverty, and the environmental impacts of food production and consumption. Much of Jennifer's current research focuses on the developing world.

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John Briscoe Gordon McKay Professor of the Practice of Environmental Engineering Speaker Harvard University

Jennifer Burney

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Jennifer Burney is a research affiliate at UC San Diego’s Policy Design and Evaluation Laboratory, an Affiliated scholar at the Center on Food Security & the Environment at Stanford University and member of the National Geographic Explorers family. Burney is a physicist by training whose research focuses on simultaneously achieving global food security and mitigating climate change. Her current interests center on the creation, implementation, and rigorous evaluation of technologies that impact human health and welfare. Jen earned her PhD in physics from Stanford. 

Jennifer Burney Assistant Professor of Science, Technology, Engineering, and Policy in the School of International Relations and Pacific Studies Commentator University of California, San Diego
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Global Food Policy and Food Security Symposium Series

Researchers call for policy, aid and innovation to help world’s poorest

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Adam Gorlick
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Philanthropist and software giant Bill Gates spoke to a Stanford audience last week about the importance of foreign aid and product innovation in the fight against chronic hunger, poverty and disease in the developing world.

His message goes hand-in-hand with the ongoing work of researchers at Stanford’s Freeman Spogli Institute for International Studies. Much of that work is supported by FSI’s Global Underdevelopment Action Fund, which provides seed grants to help faculty members design research experiments and conduct fieldwork in some of the world’s poorest places.

Four FSI senior fellows – Larry Diamond, Jeremy Weinstein, Paul Wise and Walter Falcon – respond to some of the points made by Gates and share insight into their own research and ideas about how to advance and secure the most fragile nations.

Without first improving people’s health, Gates says it’s harder to build good governance and reliable infrastructure in a developing country. Is that the best way to prioritize when thinking about foreign aid?

Larry Diamond: I have immense admiration for what Bill Gates is doing to reduce childhood and maternal fatality and improve the quality of life in poor countries.  He is literally saving millions of lives.  But in two respects (at least), it's misguided to think that public health should come "before" improvements in governance.  

First, there is no reason why we need to choose, or why the two types of interventions should be in conflict.  People need vaccines against endemic and preventable diseases – and they need institutional reforms to strengthen societal resistance to corruption, a sociopolitical disease that drains society of the energy and resources to fight poverty, ignorance, and disease.  

Second, good governance is a vital facilitator of improved public health.  When corruption is controlled, public resources are used efficiently and justly to build modern sanitation and transportation systems, and to train and operate modern health care systems.  With good, accountable governance, public health and life expectancy improve much more dramatically.  When corruption is endemic, life-saving vaccines, drugs, and treatments too often fall beyond the reach of poor people who cannot make under-the-table payments. 

Foreign aid has come under criticism for not being effective, and most countries have very small foreign aid budgets. How do you make the case that foreign aid is a worthy investment?

Jeremy M. Weinstein: While foreign aid may be a small part of most countries’ national budgets, global development assistance has increased markedly in the past 50 years. Between 2000 and 2010, global aid increased from $78 billion to nearly $130 billion – and the U.S. continues to be the world’s leading donor.

The challenge in the next decade will be to sustain high aid volumes given the economic challenges that now confront developed countries. I am confident that we can and will sustain these volumes for three reasons.

First, a strong core of leading voices in both parties recognizes that promoting development serves our national interest. In this interconnected world, our security and prosperity depend in important ways on the security and prosperity of those who live beyond our borders.

Second, providing assistance is a reflection of our values – it is these humanitarian motives that drove the unprecedented U.S. commitment to fighting HIV/AIDS during the Bush Administration.

Perhaps most importantly, especially in tight budget times, development agencies are learning a great deal about what works in foreign assistance, and are putting taxpayers’ dollars to better use to reduce poverty, fight disease, increase productivity, and strengthen governance – with increasing evidence to show for it.

Some of the most dire situations in the developing world are found in conflict zones. How can philanthropists and nongovernmental organizations best work in places with unstable governments and public health crises? Is there a role for larger groups like the Gates Foundation to play in war-torn areas?

Paul H. Wise: As a pediatrician, the central challenge is this: The majority of preventable child deaths in Sub-Saharan Africa and in much of the world occur in areas of political instability and poor governance. 

This means that if we are to make real progress in improving child health we must be able to enhance the provision of critical, highly efficacious health interventions in areas that are characterized by complex political environments – often where corruption, civil conflict, and poor public management are the rule. 

Currently, most of the major global health funders tend to avoid working in such areas, as they would rather invest their efforts and resources in supportive, well-functioning locations.  This is understandable. However, given where the preventable deaths are occurring, it is not acceptable. 

Our efforts are directed at creating new strategies capable of bringing essential services to unstable regions of the world.  This will require new collaborations between health professionals, global security experts, political scientists, and management specialists in order to craft integrated child health strategies that respect both the technical requirements of critical health services and the political and management innovations that will ensure that these life-saving interventions reach all children in need.

Gates says innovation is essential to improving agricultural production for small farmers in the poorest places. What is the most-needed invention or idea that needs to be put into place to fight global hunger?

Walter P. Falcon: No single innovation will end hunger, but widespread use of cell phone technology could help.

Most poor agricultural communities receive few benefits from agricultural extension services, many of which were decimated during earlier periods of structural reform. But small farmers often have cell phones or live in villages where phones are present.

My priority innovation is for a  $10 smart phone, to be complemented with a series of very specific applications designed for transferring knowledge about new agricultural technologies to particular regions.  Using the wiki-like potential of these applications, it would also be possible for farmers from different villages to teach each other, share critical local knowledge, and also interact with crop and livestock specialists.

Language and visual qualities of the applications would be key, and literacy problems would be constraining.  But the potential payoff seems enormous.

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Structural Change and the Future of Indian Agriculture

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Binswanger-Mkhize's talk will look at past and likely future agricultural growth and rural poverty reduction in the context of the overall economy of India, in which growth has accelerated sharply since the 1980s, but agriculture still has not followed suit. Despite slow growth, urban-rural consumption, income and poverty differentials have not risen. This is because urban-rural spillovers have led to a sharp acceleration of rural non-farm growth and income. Binswanger-Mkhize proposes an optimistic vision can be realized if agricultural growth accelerates, high and widely shared economic growth leads to strong spillovers to the rural economy, and the rural non-farm sector continues to flourish. This would enable the rural sector to keep up with income growth in the urban economy and rural poverty would rapidly decline. However, if agricultural growth fails to accelerate, and overall economic growth falters, a more pessimistic vision is also possible. Binswanger-Mkhize will also discuss the role of prices and wages in determining agricultural growth, rural poverty and nutrition, and the two interlinked income parity issues: rural-urban and agricultural-non-agricultural incomes parity.

Marianne Banziger, Deputy Director, Research & Partnership at International Maize and Wheat Improvement Center (CIMMYT) will provide commentary.

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Hans Binswanger-Mkhize Adjunct Professor Speaker School of Economics and Management, China Agricultural University, Beijing
Marianne Banziger Deputy Director, Research & Partnership Commentator International Maize and Wheat Improvement Center (CIMMYT)
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Global Food Policy and Food Security Symposium Series

Global Food Security: An uphill battle that must be won

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Sam Sasan Shoamanesh, Stanford Law graduate student, Co-founder, Global Brief, and Head of the Counsel Assistance Unit of the ICC
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This past Thursday, on the 10th of November 2011, former U.N. Secretary-General, Kofi Annan delivered a speech at Stanford University on the occasion of the launch of the Freeman Spogli Institute for International Studies' Center on Food Security and the Environment. Citing UN estimates, more precisely the UNFPA State of the World Population 2011 report, he highlighted that the world population had recently reached seven billion and growing. Advancements in healthcare and technology have increased our life expectancy, affording 'man' the ability to escape a life that is, in Hobbesian parlance, "poor, nasty, brutish, and short." Yet this apparent human success story eclipses the "shameful failure" of the international community to address an indiscernible fact: that in the contemporary technological age, an astonishing number of people in the world go hungry each day. The marriage of a globalized economy and scientific innovation was supposed to - at least in theory - increase and spread wealth and resources to enhance the human condition. And yet today - talks of unfettered markets and the financial crisis aside -, we lay witness to close to one billion people around the world who lack food security (both chronic and transitory). Citing numbers from the World Bank, Annan stated that rapidly rising food prices since 2010 have "pushed an additional 70 million people into extreme poverty". Adding to these disturbing figures is the fact that one of the world's most ravenous culprits of infanticide is no other than hunger, which claims the young lives of 17,000 children every day.

Dwindling incentives to farm and increasing pressures on farmers are not helping the food insecurity crisis. Frequently, companies who contract local farmers to produce cash crops for export do not employ "strategic agricultural planning" or take into account the impact their policies and modus operandi may have on local farming communities and their immediate (food) needs. Artificially low prices for agricultural goods force farmers from their land and discourage investment in the sector, Annan warns. Agricultural subsidies in the US and Europe against farm produce injected into the market by farmers from developing countries have also added to the problem. Agricultural subsidies in Europe in particular have had a devastating impact on farmers from other parts of the world - mostly in Asia and Africa - who simply cannot compete with the existing market conditions and the low price tags attached to their goods. This phenomenon is most acute in Africa where a significant segment of the population lives modestly by working the land and these subsidies are choking the lifeline that feeds their families. To bring home the point of the sheer imbalance between the conditions of Western farmers and the 'rest', Annan stated that with a fraction of the funds generated by a reduction of subsidies, one "can fly every European cow around the world first class and still have money left over". Without a more balanced approach to international trade policy making, subsidies will continue to be a factor in food insecurity.

And it gets worse. The 'Four Horsemen of the Apocalypse' of our times - (i) an ever emerging global water crisis, (ii) land misuse and degradation, (iii) climate change, and (iv) kleptocratic governance - have combined to aggravate an already dire international food insecurity predicament. The hard truth is that without countering the forward gallop of these ills, food insecurity cannot be adequately addressed.

The facts on the ground and projections into the future do not paint a promising picture. Food prices are expected to rise by 50 percent by the year 2050, Annan warns, and this at a time when the world will be home to two billion more inhabitants. In 40 years from now, there simply isn't enough food to nourish and satisfy the world's population.

The growing world food crisis also stifles development. It is the cyclical brutality of poverty that keeps the hungry down. Without the means or access to proper and adequate nutrition, the impoverished who are always the first victims of food insecurity invariably suffer from poor health, in turn resulting in low productivity. This vicious cycle traps the less privileged to a seemingly inescapable downward spiral.

During the course of his poignant remarks, Annan stated that without addressing food insecurity "the result will be mass migration, growing food shortages, loss of social cohesion and even political instability". He is correct on all counts.

The fact is that a world which 'cultivates' and then neglects the hungry is a dangerous and volatile world. Since time immemorial, dramatic human migrations have had a direct correlation with changes in climate, habitat and resource scarcity. Survival instincts are engrained in our genetic make-up. When the most basic and fundamental necessities of life are sparse and hard to come by, our natural inclination is to look for 'greener pastures'. An unaddressed and lingering food insecurity crisis will mean the world will witness significant and rapid migration trends in the 21st century (a phenomenon very much in motion today). The injection of mass flows of people into other foreign populations will cause friction and conflict induced by integration challenges, both social and economic (surmountable, but conflicts no less).

Moreover, the desperation and unmet basic needs of the underprivileged can translate into open outbursts of conflict and violence. Tranquility and social harmony are virtues enjoyed by countries that can provide for their people. Leaving the growing food insecurity dilemma unaddressed will be to invite inevitable political instability and violence in countries and fragile regions of the world grappling with high poverty rates and concomitant food insecurity challenges. More often than not, history has shown a positive nexus between hunger and social upheaval (it bears noting that La Grande Révolution of 1789-99 was preceded by slogans of "Du pain, du pain!"). Further, it does not take too much of a forethought to recognize that it is precisely in environments of destitute and despondency where autocratic rule can easily take root and grow to inflict further suffering.

Food insecurity can also lead to wars, but similarly wars contribute to food insecurity by destroying both the land and the ability to cultivate the land. Conflict represents formidable barriers to the access and availability of otherwise usable land (countries like Somalia, Sudan, Burundi, Ethiopia and Liberia come to mind).

To be sure, "[w]ithout food, people have only three options: they riot, they emigrate or they die" (borrowed from the often cited words of Josette Sheeran, the Executive Director of the UN World Food Program).

How are we to tackle this grave problem in a realistic and effective manner? Annan rightly tells us that the "[l]ack of a collective vision is irresponsible". Implicit in Annan's remarks is also a lack of leadership to effectively tackle and untie the Gordian Knot of food insecurity. The nature and colossal character of food insecurity demands action and cooperation on a global scale. Climate change and its negative impact on the environment - e.g. diminishing arable lands, water resources, recurring drought -, one of the accelerators of food insecurity, requires robust and committed international agreement and action to reduce the emission of greenhouse gases. Strict adherence and compliance with the Kyoto Protocol and the Copenhagen Accord are a must in this regard. With strategic agricultural planning, knowledge transfer and investment, uncultivated arable lands - abundant in many parts of the world, including in Africa - can become productive and bear fruit, reducing in turn the hunger crisis. Efforts to implement more balanced international trade policies which make farming viable across continents as well as efforts to eradicate corruption (by promoting good governance) are also part and parcel of the fight against hunger. So are innovative ways of thinking about establishing, say rapid response mechanisms to preempt and effectively counter famine and other food emergencies by bolstering the capacities of relevant existing international and regional organizations. We could also reduce the threat of hunger by doing more than just pay lip-serve to the UN Millennium Development Goals (MDGs) and uphold our commitments to the MDGs through sustained funding and support.

The UN and other multilateral bodies and pacts are tools we have created to work collaboratively - as best as human frailties permit - to confront global challenges and ills that threaten the social fabric of human society (whether they be food insecurity, dearth in development, war and the crimes that emanate from aggression which threaten peace and security, inter alia). Our capacity to reason, innovate, communicate and cooperate is hence an indispensible tool in our struggle to keep the peace, to protect our fundamental human rights and to satisfy our most basic needs for survival. It's time to put these faculties to work in confronting the world's food security challenges.

It is only fitting to conclude these brief remarks by quoting from the man and the lecture that inspired them. "If we pool our efforts and resources we can finally break the back of this problem", stated Annan in his call for action to defeat food insecurity. If there's a will, history tells us, change is within grasp, no matter how daunting the task. It only takes the trinity of courage, commitment and leadership.

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Food security experts review mixed outcomes of the Green Revolution

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Kate Johnson
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Four decades ago, farmers in Prabhu Pingali’s small eastern-Indian village began planting a new rice variety known as IR8. The high-yielding strain dramatically increased the productivity of rice cultivation in the region. Record harvests and profits allowed Pingali’s family to send their son to school and then to college, launching him on a path that led to his current position as Deputy Director of Agricultural Development at the Bill and Melinda Gates Foundation.

“I think of myself as being here today because of what the Green Revolution did,” said Pingali, speaking at the Center on Food Security and the Environment’s Global Food Policy and Food Security Symposium series.

Pingali’s story, and many others like it, came about as a result of the rapid advances in agricultural technology that characterized the “Green Revolution” of the 1960s and 1970s. Agricultural scientists from the International Rice Research Institute and the International Maize and Wheat Center worked aggressively to bring modern farming techniques, including high-yielding crop varieties, to the developing world.

The first Green Revolution proved that, “innovation, technological change, and just plain old human ingenuity” can overcome seemingly insurmountable obstacles to global food security.

Their efforts sparked a surge in agricultural productivity and incomes that lifted millions of small farmers out of poverty and dispelled widespread fears of famine in Asia’s developing countries. Pingali cited a 2003 study that found that today’s global per capita calorie consumption would be nearly 15 percent lower, and child malnutrition 6-8 percent higher, had the Green Revolution not occurred.

Production surpluses also exerted downward pressure on global food prices, increasing the purchasing power of poor food buyers in both urban and rural areas.

But even direct beneficiaries, including Pingali, acknowledge the Green Revolution’s unintended consequences. “As an Indian, I feel we could have done a lot better.”

Pingali noted that the Green Revolution largely bypassed Sub-Saharan Africa, home to some of the world’s most food-insecure populations. Unlike the developing nations of Eastern Asia, he said, most African countries still lack the market infrastructure to support rapid expansion of the agricultural sector. Low population densities, resulting in weak local food demand, and insufficient government support for agricultural development, have further inhibited productivity gains in these countries.

Additionally, many African farmers rely primarily on minor “orphan” crops, such as cassava, rather than on the global staple grains – rice, wheat, and maize – that received most attention from Green Revolution scientists. Although modern crop breeders have begun to develop high-yielding orphan crop varieties, research in this area remains sparse. Major breakthroughs and significant yield gains may not occur for decades.

Speaking after Pingali, University of Minnesota Professor Philip Pardey reiterated the Green Revolution’s welfare-enhancing consequences. Pardey provided a more rigorous quantitative analysis, presenting data that showed that yields of major cereal crops more than doubled, and real food prices fell by over 50 percent, between 1960 and 2005.

However, Pardey expressed concern about an apparent slowdown in progress since the end of the 20th century. He cited declining yield growth rates, and the food price spikes of 2008-2010, to emphasize the need for a renewed commitment to agricultural science and food security policy. 

Both Pingali and Pardey also drew their audience’s attention to the unevenness of the Green Revolution’s benefits. The yield gains of the 1960s and 1970s, Pardey said, were accompanied by increasing spatial concentration of food production, as some regions and countries benefited disproportionately from emerging agricultural research.

Even if scientists do develop improved crop varieties for Africa, Pingali said, increasingly stringent intellectual property laws could inhibit their distribution to poor rural farmers. Up until the 1990s, issues of intellectual property had little bearing on agricultural development, permitting the wide distribution of crop varieties. Now the networks that fostered the Green Revolution are in danger of disappearing because of restrictions on the transfer of intellectual property. What was once a public endeavor is increasingly a private concern, and Pingali expressed uncertainty about how private capital should be harnessed to help the rural poor.

Meanwhile, looming challenges such as population growth and global climate change will further complicate the future path of agricultural development.

Like Pardey, Pingali warned against complacency. Though the advances of the 1960s and 1970s were impressive, he concluded, researchers will need to “reach beyond the low-hanging fruit” to continue to increase productivity – intensifying the study of orphan crops, for example, and developing new crop strains that will grow well under extreme climate conditions.

According to Pingali, the first Green Revolution proved that, “innovation, technological change, and just plain old human ingenuity” can overcome seemingly insurmountable obstacles to global food security. Four decades later, agricultural development faces a new round of challenges. Despite these obstacles, Pingali concluded on a note of confidence, arguing that the Green Revolution can overcome problems that currently seem intractable. “We’ve done it before,” he declared, “and I’m sure we can do it again.”

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Farmer networks key to agricultural innovation in developing countries

Authors
Donna Hesterman
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New technologies can improve agricultural sustainability in developing countries, but only with the engagement of local farmers and the social and economic networks they depend on, say Stanford University researchers. Their findings are published in the May 23 online edition of the Proceedings of the National Academy of Sciences (PNAS).

"Most people tend to think that technology information flows to farmers through a direct pipeline from scientists, but that isn't true," said lead author Ellen McCullough, a former research fellow at Stanford's Program on Food Security and the Environment, now at the Bill and Melinda Gates Foundation.

The study was co-authored by Pamela Matson, dean of the School of Earth Sciences and senior fellow at the Woods Institute for the Environment at Stanford.

To better understand how farmers decide to adopt new technologies, the researchers interviewed growers, farm credit unions and agricultural experts in the Yaqui Valley in Sonora, Mexico – the birthplace of the "green revolution" in wheat and one of Mexico's most productive breadbaskets.

Matson and other Stanford researchers have been working in the Yaqui Valley for nearly 20 years. Among their objectives is demonstrating how science can inform agricultural policy in an area grappling with the kinds of environmental challenges that plague other intensive farming regions.

While Yaqui Valley supplies most of Mexico's wheat, the environmental costs are high, according to the Stanford researchers. Valley farms pollute local drinking water, wreck coastal ecosystems and foul the air with particulates that cause a variety of diseases.

"If scientists want to offer solutions to manage these environmental impacts, they need to understand what influences farmers' decisions about technology and production strategies," McCullough said.

Growers in Mexico's Yaqui Valley are more likely to adopt sustainable farming technologies that have been endorsed by local credit unions.

Credit union clout

In Yaqui Valley, credit unions hold sway among the majority of farmers, McCullough said. In addition to providing loans, crop insurance, fertilizer and seed, credit unions have taken over the government's role in providing technical expertise and management advice.

Valley growers also have a long history of working with the Mexico-based International Maize and Wheat Improvement Center, a world-renowned agricultural research center known by its Spanish acronym, CIMMYT.

But interviews conducted for the PNAS study revealed that most farmers take their cues from local credit unions and not from experts at CIMMYT. As an example, McCullough pointed to a collaborative effort between CIMMYT scientists and farmers to develop a nitrogen diagnostic tool that reduces fertilizer use without sacrificing crop yields.

The device, which gives real-time readings of nitrogen levels in the soil, proved early on that it could save farmers 12 to 17 percent of their profits. Yet most farmers rejected the new technology until CIMMYT researchers finally convinced credit union officials that it was a worthwhile investment.

"The most successful innovations that have been adopted by farmers in the Yaqui Valley have come from collaborations among researchers, farmers and local establishments, like the credit unions," McCullough said. Because of their considerable influence among farmers, credit unions should be included in any effort to effect environmental change in the region, she added.

"The Yaqui case negates the simplistic view of the one-way flow of scientific information from the agricultural research community to the user community," Matson said. "If researchers seek to produce relevant knowledge that ultimately influences decision making, they must recognize the dynamics of the local knowledge system and participate purposefully and strategically in it."

The research was supported with grants from the National Oceanic and Atmospheric Administration and the David and Lucile Packard Foundation.

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