Document anglais d'analyse économique d'entreprise vache-veau au Kansas, les grandes conclusions sont communes à toutes l'industrie en Amérique de Nord. Je vous invite à consulter les tableau 1 et 2 qui présente un portrait entre les le groupe de tête et le groupe de queue. Ask any veteran cow-calf prodcer about profitability and they likely will have several “I remember back in…” stories. It is well known that economic returns to cow-calf producers fluctuate considerably over time and year-to-year swings can be extreme. Figure 1 shows returns over variable costs, on a per cow basis, for beef cow-calf producers enrolled in the Kansas Farm Management Association (KFMA) program with cow-calf enterprise records from 1979 to 2010. The number of producers participating in the enterprise analysis averaged 155 per year and ranged from 93 to 258 over the 32-year period. Average annual returns varied from a low of -$76.40 per cow in 2009 to a high of $218.55 in 2004 (a swing of almost $295 in just five years – you don’t have to be much of a veteran to have stories...) and averaged $59.82 per cow over the entire time period. If the 32-year returns in figure 1 are sorted from high (“good years”) to low (“bad years”) and divided into thirds, the average returns for the time periods are $147.40, $61.58, and -$29.53, for the top-, middle-, and bottom-periods, respectively. In other words, there is almost a $177 difference in the average returns per cow in the “good” years compared to the “bad” years, where “good” is defined as the best 1/3 years and “bad” is defined as the worst 1/3 years in nominal terms.