An Analysis on Dynamic Interaction of Four Agricultural Sectors

A dynamic system VAR model was established including the variables of output value of farming, forestry, husbandry and fishery.The outcome of Granger causality test shows that output value forestry and husbandry are easily affected by other sectors of agriculture; output value of farming is hardly affected by other sectors; husbandry and fishery are mutual Granger reasons.Farming, forestry, husbandry and fishery have very different impulse responses when there are pluses from the four sectors of agriculture and the responses would get weaker as time went.Also conclusions were gained that output value of husbandry change had greater impact on itself and also output value of price of forestry, farming and fishery had a 25%, 25% and 12.34%impact on value of husbandry respectively through variance decomposition.