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The Impact of Transaction Costs on Interest Margins in the Romanian Banking Sector

New Policy Challenges for European Multinationals

ISBN: 978-1-78190-020-8, eISBN: 978-1-78190-021-5

Publication date: 16 November 2012

Abstract

Purpose – This chapter investigates the effect of capital requirement regulations, both national and those issued by the Basel Committee on Banking Supervision, on banks’ interest rate margins between loans and deposits. Higher capital requirements lead to higher margins, as banks pass this additional cost to consumers.

Methodology – To estimate this effect, we use yearly data from a cross section of countries and fixed/random effects regressions. Our results exhibit a stronger statistical significance when we focus on a cross section of 20 transition economies from Central and Eastern Europe between 2000 and 2008.

Findings – Once we include institutional factors, as well as banking system and macroeconomic-related variables, we are able to explain more than 60% of the variation in interest margin across countries. We find that the banking capital to asset ratio positively and significantly impact the margin: we estimate that a 1 percentage point increase in capital requirements leads to a 20 basis point increase in the interest rate margin. The banking system liberalization index has a strong and significant impact on margin, with a higher degree of liberalization bringing about lower margins. The impact of a one-step increase (1/3 on a scale of 1 to 4) is a reduction in the margin by 1.25 percentage points. Other variables that influence the margin are real interest and inflation, both with a positive sign.

Implications/value of chapter – National banking authorities should not impose higher capital requirements than those recommended by the Basel Committee, as this would increase local borrowing costs. Romania's 15% capital requirements (vs. 10% required by Basel rules) have increased the interest rate margin by at least 1.5 percentage points.

Keywords

Citation

Voinea, L., Mihaescu, F. and Busuioc, A. (2012), "The Impact of Transaction Costs on Interest Margins in the Romanian Banking Sector", Van Tulder, R., Verbeke, A. and Voinea, L. (Ed.) New Policy Challenges for European Multinationals (Progress in International Business Research, Vol. 7), Emerald Group Publishing Limited, Leeds, pp. 119-132. https://doi.org/10.1108/S1745-8862(2012)0000007008

Publisher

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Emerald Group Publishing Limited

Copyright © 2012, Emerald Group Publishing Limited