The Chambre d’Agriculture de la Gironde recently published a revised edition of a study entitled: “Référential Economique du Vigneron” (previously published in 2002, 2009, 2012 and 2016), which analyses production costs for AOC Bordeaux wines.
The 2018 edition looks not only at the difference between a producer selling in bulk and one selling in bottle but also at the differences between producers with different sized vineyards, different planting densities and the different costs associated with organic and conventional approaches.
Here is my synopsis of the study, in English, with various additions and observations regarding the findings of the study: