THE ANDEAN PRICE BAND SYSTEM: EFFECTS ON PRICES, PROTECTION AND PRODUCER WELFARE

Table 2. Nominal Protection Coefficients (NPCs) for Selected Products in Colombia, Ecuador
and Venezuela: Pre-Andean Price Band System and Andean Price Band System Periods

Country	Product	Period	N	Average NPC	t-test______
Columbia	Rice	Pre-APBS APBS_______	64 44	0.99 1.24	7.025***
	Sugar	Pre-APBS APBS_______	64 39	1.09 1.41	6.131***
	Milk	Pre-APBS APBS_______	64 35	1.35 1.66	4.483***
Ecuador	Maize	Pre-APBS APBS_______	64 44	1.52 1.60	1.000ns
	Rice	Pre-APBS APBS_______	64 44	1.07 1.20	3.602***
	Sugar	Pre-APBS APBS_______	64 44	0.98 1.28	6.964***
	Milk	Pre-APBS APBS_______	64 44	1.13 1.16	0.626ns
Venezuela	Maize	Pre-APBS APBS_______	64 44	1.08 1.30	4.817***
	Rice	Pre-APBS APBS_______	64 44	1.25 1.55	6.307***
	Sugar	Pre-APBS APBS_______	64 44	1.16 1.34	3.312***
	Milk	Pre-APBS APBS	64 44	1.43 1.61	3.009***

***Difference between means across periods is statistically significant at the 1% level;

** 5% level; *10% level, or ns = not significant.

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THE ANDEAN PRICE BAND SYSTEM: EFFECTS ON PRICES, PROTECTION AND PRODUCER WELFARE

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