Sunday, August 3, 2014

2014 - colder and slightly wetter than average US growing conditions

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Futures prices for corn have been decreasing a lot - for example the December 2014 contract for corn has decreased by more than 25% between ...
Saturday, April 12, 2014

Daily weather data: original vs knock-off

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Any study that focuses on nonlinear temperature effects requires precise estimates of the exact temperature distribution.  Unfortunately,  m...
Thursday, January 2, 2014

Massetti et al. - Part 3 of 3: Comparison of Degree Day Measures

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Yesterday's blog entry  outlined the differences between Massetti et al. derivation of degree days and our own.  To quickly recap: Our m...
Wednesday, January 1, 2014

Massetti et al. - Part 2 of 3: Calculation of Degree Days

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Following up on  yesterday's post , let's look at the differences in how to calculate degree days. Recall that degree days just coun...
Tuesday, December 31, 2013

Massetti et al. - Part 1 of 3: Convergence in the Effect of Warming on US Agriuclture

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Emanuele Massetti  has posted a  new paper  (joined with  Robert Mendelsohn  and  Shun Chonabayashi ) that takes another look at the best cl...
Tuesday, December 17, 2013

Yet another way of estimating the damaging effects of extreme heat on yields

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Following up on  Max's post  on the damaging effects of extreme heat, here is yet another way of looking at it.  So far, my coauthor Mic...
Friday, August 10, 2012

US Corn Yields

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USDA today announced its  forecast for corn yields . It might be fun to compare those forecast to one using a statistical model of corn yie...