RDP 9601: Why Does the Australian Dollar Move so Closely with the Terms of Trade? Equation (6)

Δ q t =λ.Δto t t + ε t , λ >0 MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaqbaeqabeGaaaqaaiabfs5aejaadghadaWgaaWcbaGaamiDaaqabaGccqGH9aqpcqaH7oaBcaGGUaGaeuiLdqKaamiDaiaad+gacaWG0bWaaSbaaSqaaiaadshaaeqaaOGaey4kaSIaeqyTdu2aaSbaaSqaaiaadshaaeqaaOGaaiilaaqaaiabeU7aSbaaiiaacqWF+aGpcaaIWaaaaa@4A54@