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Agricultural and Food Economics

Table 4 The results from the DF-GLS Unit Root Test

From: Impacts of corn price and imported beef price on domestic beef price in South Korea

 

Level

 

First difference

 

Variable

Constant w/o trend

Constant with trend

Decision

Constant w/o trend

Constant with trend

Decision

KORP

−1.89

−2.96**

I(1)/I(0)

−17.48***

−18.53***

I(0)

CORNP

−1.01

−1.74

I(1)

−10.75***

−10.87***

I(0)

AUSP

0.32

−3.44**

I(1)/I(0)

−12.36***

−12.54***

I(0)

  1. I(0) indicates no unit root, and I(1) indicates unit root
  2. Estimates are statistically significant at ***1%, **5%
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