Finally, the absence of a return rate is an additional
limitation. Local Harvest publishes the number of shares
for each CSA farm however, this cannot be equated to the
number of members, even though it might act as an
approximation it is not a reliable measure. We asked
farmers/mangers how many members they have with many
of them offering an estimate rather than a definitive number. Still other farmers/managers did not respond to our
request. As a result, a response rate cannot be calculated.