The role of green total factor productivity to farm-level performance: evidence from Norwegian dairy farms

Agricultural and Food Economics

Table 1 Model variables' descriptive statics used in the translog functions

Mean	Label	Unit	Mean	SD
Desirable output (y)	Dairy output	1000 NOK	1466.50	1167.49
Undesirable output (b)	CH4 emission	tonne/year	0.99	0.61
Undesirable output price	CH4 price	NOK/tonne	0.045	0.013
Inputs (x_i) x₁	Land	Hectares	3.31	2.02
x₂	Labour	100 h	35.62	10.74
x₃	Material costs	1000 NOK	480.06	453.45
x₄	Capital costs	1000 NOK	404.63	415.66
N	Observation		6229