Price index of fattening cattle in Sucre province (Colombia)

objective: to create a month productor price index, and research relation's between the price o f growing and fat livestock, at sucre department, colombia, during jan/04 to jan/10. methods: the paasche methodology and time economic series econometrics were used. results: the index price is a close approximation of the perfomance observed prices, therefore it is a useful indicator for monitors the behavior of the productor revenue and to help to choose purchase and sale decisions both to productors and merchants. although the prices path diverge in short run, there is one long run relations that guide them. this relation is a sign of market's efficient to the formation price. according to information existing, when the price of fat cattle increasing 1 porcentual, the price of growing cattle increasing at 1.14 percent; short run, lag price affect the actual price; price of growing cattle cause to the granger to price of fat cattle; and the estrangement of market equilibrium is adjusted by prices movement to next month. conclusion: the adjustment is very slow, approximately the 50 percentual of a price variation of the fat cattle last seven months for to pass on the growing cattle price.