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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