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Factors Impacting Bank Net Interest Margin and the Role of Monetary Policy: Evidence from Turkey

International Journal of Finance & Banking Studies

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Title Factors Impacting Bank Net Interest Margin and the Role of Monetary Policy: Evidence from Turkey
 
Creator Yılmaz, Muhammed Hasan
 
Description In this study, we investigate factors affecting net interest margin (NIM) of commercial banks in Turkey. Especially, our results highlight the relation between unconventional monetary policy shocks and bank margins. To this end, first, we conduct an identification analysis about which parameters of asymmetric interest corridor framework are important in explaining variations in NIM. Using industry-level data, we show that there exists a pass through from BIST interbank overnight repo/reverse repo market rate and weighted average cost of funding (WACF) to bank loan and deposit rates. As a result of reduced-form Vector Autoregression (VAR) analysis we find the existence of a transmission mechanism from BIST rate and WACF to commercial loan rate, consumer loan rate and deposit rate. Same pass through to loan and deposit rates is also shown in individual bank level with the Panel Vector Autoregression (Panel VAR) analysis in the case of 16 commercial banks in Turkey during the period 2011Q1-2016Q1. After the identification analysis, we examine the relationship between NIM and policy rates through System Generalized Method of Moments (GMM) techniques by controlling bank specific, industry related and macroeconomic factors. We find that a change in the monetary policy rate has significant and positive impact on NIM. Among bank-specific factors, equity ratio and operating expenses are found to be significantly affecting NIM during the sample period. Our empirical findings also stress the significance of lag values of NIM. Estimations conducted with standardized variables indicate that economic significance of lag values and bank specific variables are larger than that of policy.
 
Publisher SSBFNET
 
Date 2017-03-15
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://www.ssbfnet.com/ojs/index.php/ijfbs/article/view/28
 
Source International Journal of Finance & Banking Studies (2147-4486); Vol 6 No 2 (2017): Special Issue; 1-23
2147-4486
 
Language eng
 
Relation http://www.ssbfnet.com/ojs/index.php/ijfbs/article/view/28/29
 
Rights Copyright (c) 2017 International Journal of Finance & Banking Studies (2147-4486)
http://creativecommons.org/licenses/by-nc/4.0