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Table A1. World reference prices: results of the unit root tests (annual data)




ADF
coefficient (-1)


t-
values

WRWHRP

level

-0.36

-2.73


first differences

-1.18

-4.89

WRMZRP

level

-0.28

-2.35


first differences

-1.17

-5.09

WRRIRP

level

-0.43

-1.97


first differences

-1.11

-5.60

WRSHRP

level

-0.25

-2.37


first differences

-1.06

-4.63

WRBMRP

level

-0.19

-1.99


first differences

-1.15

-4.67

WRPMRP

level

-0.12

-1.40


first differences

-1.07

-4.46

WRPLRP

level

-0.12

-1.41


first differences

-0.78

-3.56

WRCSRP

level

-0.11

-1.03


first differences

-1.49

-6.74

WRSYRP

level

-0.25

-2.37


first differences

-1.06

-4.62

WRSFRP

level

-0.32

-2.62


first differences

-1.42

-7.06

WRMPRP

level

-0.34

-2.04


first differences

-1.40

-4.89

WRBURP

level

-0.22

-1.98


first differences

-0.93

-4.15

see Table 1 for variables' names
Bold = significantly different from zero at 5% or less
source: own calculation on ESCB price data


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