Discover our list of content: future events & news

CEE-M's events

  • Home
  • Events
  • Yes, in Your Backyard: Forced Technological Adoption and Spatial Externalities.
EE Seminar

Environmental Economics Seminar

Yes, in Your Backyard: Forced Technological Adoption and Spatial Externalities.


Anouch Missirian
Assistant professor at the Toulouse School of Economics



Diffusion of new technologies in competitive markets is often thought to be too slow relative to an optimal adoption trajectory due to learning-by-doing, learning-by-using, or network externalities. In this paper, in contrast, I study a phenomenon of hastened technology adoption facilitated by a negative spatial externality imposed by adopters on non-adopters. Focusing on new herbicide-tolerant seeds for soybean and cotton, I show that adoption by U.S. farmers was partly caused by wind carrying the drift-susceptible herbicide across plots. I estimate that being in the same wind corridor as an adopter increased the probability of adopting by about 29%. The externality also led to defensive adaptation: cropland was converted to crops able to withstand the herbicide, suggesting a form of protective land-use change to prevent damage. I then turn to broader consequences of the widespread adoption of the technology, including its overall effect on yields. A priori, the effect on yields is ambiguous. I find that overall, yields remained practically unchanged, despite increased crop failure. The rapid diffusion of this new technology and the consequences highlighted here call for the careful consideration of policies to address such inventions and of their accompanying side-effects.

Practical information


Montpellier SupAgro / INRA - Bat. 26 - Salle Océanie
2 Place Viala 34000 Montpellier

Dates & time

Apr 08, 2022


Alexandre Sauquet
View mail

Gwenolé Le Velly
View mail