Different sources of evidence indicate that large farms, in general, are more efficient than smaller ones. The causes and effects, however, are less clear. Size alone isn't the only factor involved. Other factors include kind of farming, soil and topography, kind of management and differences among operators.
"Are Big Farms More Efficient Than Small Ones?,"
Iowa Farm Science: Vol. 16
, Article 5.
Available at: https://lib.dr.iastate.edu/farmscience/vol16/iss3/5