The variability of producers' net income levels is largely a function
of variability in output price, yield and input prices. Pet, the tools
available to manage price risk and yield risk are not widely used by
producers. Is the market failing to provide agricultural producers wit
h effective risk management tools? To identify producers' needs, the p
aper establishes the relative importance of price and yield risk by de
composing the variability of revenues from a sample of crops in Califo
rnia agriculture. The risk tools available to producers of those commo
dities are compared to producers' needs for tools. Results indicate th
at ''market failure'' is readily apparent in markets for tools to mana
ge risks. However the nature of these missing or incomplete markets do
es not necessarily imply inefficiencies that would justify government
intervention. (JEL D52, D80, W12).