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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%