Production is commonly described as the root of wealth creation, growt
h and progress. Mainline production theory ascribes this wealth genera
ting ability to a limited number of inputs transformed into equally na
rrowly defined goods and services. Output which is not part of the off
icial economy's market exchange, or inputs not employed in their produ
ction process remain external and unaccounted for. Many of these unacc
ounted for goods and inputs are provided in households, gardens, subsi
stence production, or ecological and biophysical systems through the '
free' services of women or nature. Thus an alternative view of product
ion is suggested, one which views production itself as linked to the s
ocial and bio-physical contexts within which it takes place. This cont
ext first makes the generation of input streams, the receiving of outp
ut streams and the processing of inputs by means of fund factors (Geor
gescu-Roegen) possible. As production is contextualized it becomes evi
dent that processes which sustain input generation, waste absorption a
nd material transformation are critical to the production process. The
se are referred to as sustaining services. A sustaining production pro
cess is one which maintains sustaining services instead of destroying
them. It is further argued that steps toward the implementation of a s
ustaining production concept require a move from abstraction to materi
al concreteness. Three areas of concreteness are discussed as moving f
rom solely monetary to physical valuation criteria, moving from method
ological homogeneity to diversity, and moving from a mystified and dis
tanced decision making process about quantity and quality of productio
n to one of informed, participatory discourse.