Nonparametric cointegration analysis



Note that Assumption 2 guarantees that the matrix Vr,m is a.s. nonsingular.
Denoting

Xk - RRTkc(1)C(1)TR J'4RqT,C(1)Xk, Yk = RTC(1)C(1)tXj,J'÷Rr(1) Y,,
and using the result of Andersen, Brons and Jensen (1983), it follows straightforwardly from

Lemma 4:

Theorem 1. Let λ1 ,m .. ≥ λq,m be the ordered solutions of the generalized eigenvalue problem

(19)


defA λ λ(B +n 2A 1)1 = 0,
|_ m mm          m 7J ’

and let λ1,m... ≥ λq-r,m be the ordered solution of the generalized eigenvalue problem

m

vk1


(20)

where the X*i ’s and Y*j ’s are i.i.d. Nq-r(0,Iq-r). Ifzt is cointegrated with r linear independent
cointegrating vectors then under Assumptions 1-3,
(λ1 ,m ,..,λq,m ) converges in distribution to
(λ1,m,...,λq-r,m,0,..,0).

In order to show how fast (λq-r+1 ,m ,..,λq,m ) converges to (0,....,0), observe from Lemma
4 that

n RR τA RR t(B +
m f mm


n2A l)RRtA R^'1
m 7 /
m f


R Rn-2a 1 r)'2Rt(B
           m f     × m


+ n -2a l)RRn -2a^1r) *
m 7 /            m f


D (O


O


Moreover, it is easy to see that the solutions μj,m of the generalized eigenvalue problem
i +n-2A-1)RRtaR'ɪ -μI

det -J-R tAR RR t(Bi


m             m 7 / n * T T

11



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