Clearly, farmers must decide when to sell their potatoes during the year based on their ex-
pectations of future prices and their time discount rate. The information intervention is likely to
have aected their expectations and therefore could have aected the timing of their sales, and
through that, the revenue that they receive. This makes an observation of a sale in any given
week endogenous to the intervention. However, since potatoes cannot be stored for longer than 11
months, all potatoes harvested in a year must be sold within the year.3 Therefore, we simplify the
analysis by aggregating the data to the annual level. All our analysis will focus on the aggregate
quantity the farmer sells and the aggregate revenue he receives during the year.