part part two two monitoring monitoring of of agricultural agricultural prices prices and and measurement measurement 21 21 the the index index farm farm gate gate products products measures measures changes changes in in received received by by farmers farmers for for they they supply supply theory theory ex ex are are monitored monitored when when first first marketed marketed 2 2 1 1 a a marketing marketing system system undergoing undergoing major major change change sold sold many many different different ways ways according according to to nature nature goods goods diversity diversity production production systems systems geographical geographical distribution distribution consumption consumption areas areas requirements requirements processing processing if if were were uniformly uniformly each each week week bulk bulk farmyard farmyard we we could could survey survey sample sample who who would would provide provide similar similar answers answers that that be be incorporated incorporated into into simple simple calculation calculation method method actual actual fact fact there there models models with with content content recorded recorded varying varying considerably considerably from from one one channel channel next next some some such such as as cereals cereals milk milk beet beet not not widely widely physical physical markets markets because because authorities authorities worried worried about about organising organising their their trade trade or or producers producers soon soon organised organised themselves themselves cooperatives cooperatives handled handled storage storage this this is is why why apart apart poultry poultry cow cow s s ippap ippap does does
