Period I of OECD countries (1968-1996, N = 24, T = 29, NT = 696)

Numbers of factors for gross savings:

Bai-Ng (2002)

ICp2

BIC3

Onatski

1

10

1

Numbers of factors for gross investment:

Bai-Ng (2002)

ICp2

BIC3

Onatski

1

10

1

Period II of OECD countries (1997-2015, N = 29, T = 19, NT = 551)

Numbers of factors for gross savings:

Bai-Ng (2002)

ICp2

BIC3

Onatski

10

10

5

Numbers of factors for gross investment:

Bai-Ng (2002)

ICp2

BIC3

Onatski

10

10

3