Current Account Dynamics and Degree of Capital Mobility

8 Pages Posted: 3 Sep 2012 Last revised: 22 Sep 2012

Levent Bulut

Ipek University - Department of Economics; Ipek University

Date Written: July 1, 2012


By modeling the current account balances (as a percentage of GDP) in a dynamic AR (1) Model, Taylor (2002) proposed to use speed of mean reversion of the dynamics of the current account as a tool for measurement of capital mobility and confirmed the stylized fact of U-Shape degree of capital mobility through the last two centuries with this new approach. With the assumption that countries obey their Long Run Budget Constraint (LRBC), the OLS estimate of the degree of current account persistency in Taylor (2002) is downward bias due to small sample and high serial correlation of current account ratios with its lags. By correcting these biases with the Andrew's (1993) exact median-unbiased estimation, we find that the confidence intervals for half-life estimates include 1- year (which was used as a benchmark) in 37 out of 75 country-period cases, which cast some doubt on the use of half-life estimate as a practical measure of capital mobility.

Keywords: current account adjustments, capital mobility, current account persistency

JEL Classification: F21, F32

Suggested Citation

Bulut, Levent, Current Account Dynamics and Degree of Capital Mobility (July 1, 2012). Applied Economics Letters, Forthcoming. Available at SSRN:

Levent Bulut (Contact Author)

Ipek University - Department of Economics ( email )

Ipek University
Turan Gunes Bulvari
Ankara, 06550

Ipek University ( email )

Turan Güneş Blv
Ankara, 06550

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