[gertef]

This is one of the problems with GDP/econometrics in general: It tries to measure value but actually measures prices.

If I lower my prices (maybe as a charitable act, or due to competition), I haven't decreased my value, but econometrics thinks I did. If you and I pay each other to waste fuel, pollution and time to drive to each other's homes to do the laundry, that's consider "better" than if we stayed home and did our own, according to econometrics.