Designing the Novel Imported Pork Producer Declaration Price Index Using Chinese Customs Import Declarations

Table 12

Table of correlation coefficients between dynamic index and SSP.

	Synchronization	Two months in advance	One month in advance	One-month lag	Two-month lag
PPI_IPD	0.30220	0.32325	0.37494	0.39540	0.37234
PPI_IPD_10	0.32681	0.34409	0.38872	0.39183	0.37234
PPI_IPD_20	0.32153	0.33750	0.38776	0.39067	0.38435