RDP 9601: Why Does the Australian Dollar Move so Closely with the Terms of Trade? Equation (C8)

π t diff =−0.114+0.206 π t−4 diff −0.173 π t−6 diff +0.499   4 i t−2 diff −0.395   4 i t−3 diff +0.511 ε 3,t MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=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@8190@