Price information analysis of Taiwan broiler industry under different chicken import deregulation policies

According to the changes of chicken import policy, it could be divided into three periods: control import, quota import and free import. This study adopts GARCH models and weekly data to analyze the broiler farm prices during these different periods. Based on the empirical test results, it indicates that there is larger long-run persistence effect of shocks in the free import period. The reactions of broiler farm prices to the lag broiler farm prices, survey number of chick after six weeks, pig prices, colorful broiler farm prices, chick prices and feedstuff prices are different during these three periods.