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

Table 10

Table of correlation coefficients between dynamic index and NSP.

	Synchronization	Two months in advance	One month in advance	One-month lag	Two-month lag
PPI_IPD	0.33380	0.36259	0.47196	0.49918	0.49825
PPI_IPD_10	0.33380	0.39887	0.49011	0.53508	0.52192
PPI_IPD_20	0.33595	0.36836	0.48610	0.51520	0.50682