Janet Carpenter

Independent Expert

Janet Carpenter

Owner, J E Carpenter Consulting LLC M.S. Agricultural and Resource Economics

I have been working on understanding the reasons farmers worldwide are adopting GMO crops and estimating the impacts of GMO crop technology for 15 years, starting in the late 1990s when we were witnessing high adoption rates for insect-resistant corn and cotton and herbicide-tolerant soybeans in the U.S. and other countries. At this point, the accumulated evidence on the impacts and safety of GMO crops is extensive. I have enjoyed reviewing this body of evidence in my most recent work, addressing direct economic impacts, impacts on biodiversity and the broad socioeconomic impacts of currently commercialized technology globally.

From this Expert

Posted on April 14, 2016
Response from Janet Carpenter, Owner, J E Carpenter Consulting LLC M.S. Agricultural and Resource Economics • April 13, 2016
GE crops are grown on nearly ½ of all U.S. cropland (182 million acres in 2012), while USDA-certified organic crops are grown on a much smaller acreage (5.4 million acres in 2011).  However, there is little overlap in which crops are grown with GE varieties versus certified organic production systems. The most widespread adoption of GE crops is in major crops such as corn, soybean, cotton, canola and sugarbeet, for which over 90 percent of acreage is planted with GE varieties.... Read More
Posted on January 22, 2016
Response from Janet Carpenter, Owner, J E Carpenter Consulting LLC M.S. Agricultural and Resource Economics • May 20, 2016
There is very little research into the impacts of the introduction of GMO’s on jobs. For the U.S., I am aware of just two studies that address this question directly. In a study on herbicide tolerant corn, cotton and soybeans for 2001-2003, researchers found a significant reduction in household labor associated with adoption of herbicide tolerant soybeans, but no difference for corn or cotton (Gardner, et al., 2009). Another study, using data from 1996-2001, found that adoption of... Read More
Posted on January 19, 2016
Response from Janet Carpenter, Owner, J E Carpenter Consulting LLC M.S. Agricultural and Resource Economics • April 12, 2016
The most recent data available from USDA on GM and non-GM soybean yields in the U.S. is from 2006, when GM herbicide tolerant soybean adopters were found to have a 3 percent yield advantage over non-adopters on average. (See 2014 USDA Economic Research Service Report, Genetically Engineered Crops in the United States.) However, it is important to keep in mind that average differences may be driven by other factors than the GM herbicide tolerance trait, such as other characteristics of the... Read More
Posted on January 19, 2016
Response from Janet Carpenter, Owner, J E Carpenter Consulting LLC M.S. Agricultural and Resource Economics • April 12, 2016
Unfortunately, there are no publicly available data comparing average crops yields of GM and non-GM canola in the U.S., due to the relatively small acreage grown in the U.S. (1.8 million acres planted in 2015 compared to 82.7 million acres planted for soybeans). To see my response to a similar question regarding GM and non-GM soybean yields in the U.S., click here.
Posted on May 18, 2015
Response from Janet Carpenter, Owner, J E Carpenter Consulting LLC M.S. Agricultural and Resource Economics • May 18, 2015
Moderator Note:  This response was drafted with input from Dr. Felicia Storer,    Your question points to an important challenge facing the world’s agricultural systems, which is how we will feed an estimated 2 billion more people by 2050 who increasingly demand meat, eggs and dairy in their diet.  While in the past we have cleared wild lands to grow more crops, the availability of new land is constrained, and we have a better understanding of the negative... Read More
No Studies were Found.