1. Statistical Inference about Markov Chains
2. Irwin S. &Good D.(2017a).When should we start paying attention to crop condition ratings for corn and soybeans?farmdoc daily(7):96 Department of Agricultural and Consumer Economics University of Illinois at Urbana‐Champaign May 24 2017.
3. Irwin S. &Good D.(2017b).How should we use within crop condition ratings for corn and soybeans?farmdoc daily(7):101 Department of Agricultural and Consumer Economics University of Illinois at Urbana‐Champaign June 1 2017.
4. Irwin S. &Hubbs T.(2018).What to make of high early season crop condition ratings for corn?farmdoc daily(8):108 Department of Agricultural and Consumer Economics University of Illinois at Urbana‐Champaign June 13 2018.