A study of 93 broadacre farms has revealed that most farms display high levels of technical efficiency. On average, technical efficiency is improving, although a small proportion of farms remain relatively inefficient due to a number of factors.
Henderson, Ben and Kingwell, Ross
"Testing the efficiency of broadacre farms,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 42
, Article 2.
Available at: http://researchlibrary.agric.wa.gov.au/journal_agriculture4/vol42/iss1/2