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Panel Investigation of the Factors Determining the Supply of Bank Loans in Bulgaria Using Microeconomic Data

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  • Peshev Petar Ilkov

    (University of National аnd World Economy, Faculty of General Economics, Department of Economics, Bulgaria)

  • Stamenova Radostina Asenova

    (University of National аnd World Economy, Faculty of General Economics, Department of Economics, Bulgaria)

Abstract

This paper studies the factors affecting Bulgarian commercial banks’ loan supply over the period between Q1 2007 and Q4 2024. The analysis employs a panel of indicators derived from individual (microeconomic) commercial banks’ balance sheets and income statements, alongside macroeconomic variables. Combining cointegrated I(0) and I(1) data suggests the use of the Pooled Mean Group (PMG) ARDL model in panel data of Pesaran, et al. (1999). Our main findings are that the capital adequacy ratio (CAR), cost-to-income ratio (CTOI), yield on government bonds, and return on assets (ROA) exhibit negative association with loan growth, while market share (MS), loan-to-deposit ratio, interest rate on liabilities, GDP growth, housing prices, and inflation positively influence lending activity. The negative value of the Error-correction term of -0.11 and the p-value of 0.016 support the validity of a long-run relationship, indicating that loan growth adjusts toward the equilibrium state at a speed of 11% per quarter. Short-run dynamics reveal that changes in CAR, market share, and loan-to-deposit ratios significantly affect loan growth, while bank lending, economic growth, and bank efficiency indicators display lagged effects. The results of this study offer important insights into the operation of credit markets in small, open, and bank-dependent economies such as Bulgaria.

Suggested Citation

  • Peshev Petar Ilkov & Stamenova Radostina Asenova, 2025. "Panel Investigation of the Factors Determining the Supply of Bank Loans in Bulgaria Using Microeconomic Data," Economics, Sciendo, vol. 13(3), pages 493-520.
    • Handle: RePEc:vrs:econom:v:13:y:2025:i:3:p:493-520:n:1024
    DOI: 10.2478/eoik-2025-0076
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    References listed on IDEAS

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    1. Bernanke, Ben S & Blinder, Alan S, 1988. "Credit, Money, and Aggregate Demand," American Economic Review, American Economic Association, vol. 78(2), pages 435-439, May.
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    JEL classification:

    • C33 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Models with Panel Data; Spatio-temporal Models
    • C52 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Evaluation, Validation, and Selection
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

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