The recent focus on sustainability as guiding principle for economic a
ctivity has generated many (often conflicting) definitions of sustaina
ble economic development. Yet while the terminology may be new, the di
scussion is not. It parallels the discussion about biases of economic
valuation concepts that have led to the neglect of the domestic and su
bsistence contributions relegated to the ''informal'' or household sec
tor. This paper argues that the narrow definition of economic theory,
methodology, and valuation concepts has led to the detrimental neglect
of sustaining functions without which economic activity is impaired.
To move toward sustainability it is imperative to regain a broader und
erstanding of economics. Three principles are identified as essential
for this conceptual expansion of economics. They are: concreteness rat
her than abstraction, connectedness rather than isolation, and diversi
ty rather than homogeneity. All three are informed by feminist theory.
Thus it is argued that the voices of women who have gone largely unhe
ard in economics are essential to reconceptualizing economics as susta
inable.