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Elena Carletti
- 10 January 2024
- WORKING PAPER SERIES - No. 2886Details
- Abstract
- Bank market power, both in the loan and deposit market, has important implications for credit provision and for financial stability. This article discusses these issues through the lens of a simple theoretical framework. On the asset side, banks choose the quality and quantity of loans. On the liability side, they may be subject to depositor runs whenever they offer demandable contracts. Thisstructure allows us to review the literature on the role of market power for credit provision and stability and also highlight the interactions between the two sides of banks’ balance sheets. Our approach identifies relevant channels that deserve further analysis, especially given the rising importance of bank market power for monetary policy transmission and the rise of the digital economy.
- JEL Code
- G01 : Financial Economics→General→Financial Crises
G21 : Financial Economics→Financial Institutions and Services→Banks, Depository Institutions, Micro Finance Institutions, Mortgages
G28 : Financial Economics→Financial Institutions and Services→Government Policy and Regulation
- 14 February 2023
- WORKING PAPER SERIES - No. 2782Details
- Abstract
- Loan guarantees represent a form of government intervention to support bank lending. However, their use raises concerns as to their effect on bank risk-taking incentives. In a model of •nancial fragility that incorporates bank capital and a bank incentive problem, we show that loan guarantees reduce depositor runs and improve bank underwriting standards, except for the most poorly capitalized banks. We highlight a novel feedback effect between banks•' underwriting choices and depositors' •run decisions, and show that the effect of loan guarantees on banks' incentives is different from that of other types of guarantees, such as deposit insurance.
- JEL Code
- G21 : Financial Economics→Financial Institutions and Services→Banks, Depository Institutions, Micro Finance Institutions, Mortgages
G28 : Financial Economics→Financial Institutions and Services→Government Policy and Regulation
- 28 February 2017
- WORKING PAPER SERIES - No. 2032Details
- Abstract
- Banks are intrinsically fragile because of their role as liquidity providers. This results in underprovision of liquidity. We analyze the effect of government guarantees on the interconnection between banks' liquidity creation and likelihood of runs in a model of global games, where banks' and depositors' behavior are endogenous and affected by the amount and form of guarantee. The main insight of our analysis is that guarantees are welfare improving because they induce banks to improve liquidity provision although in a way that sometimes increases the likelihood of runs or creates distortions in banks' behavior.
- JEL Code
- G21 : Financial Economics→Financial Institutions and Services→Banks, Depository Institutions, Micro Finance Institutions, Mortgages
G28 : Financial Economics→Financial Institutions and Services→Government Policy and Regulation
- 7 July 2016
- WORKING PAPER SERIES - No. 1932Details
- Abstract
- We develop a model where banks invest in reserves and loans, and trade loans on the interbank market to deal with liquidity shocks. Two types of equilibria emerge, depending on the degree of credit market competition and the level of aggregate liquidity risk. In one equilibrium, all banks keep enough reserves and remain solvent. In the other, some banks default with positive probability. The latter equilibrium exists when competition is not too intense and high liquidity shocks are not too likely. The model delivers several implications concerning the severity of crises and credit availability along the business cycle.
- JEL Code
- G01 : Financial Economics→General→Financial Crises
G20 : Financial Economics→Financial Institutions and Services→General
G21 : Financial Economics→Financial Institutions and Services→Banks, Depository Institutions, Micro Finance Institutions, Mortgages
- 26 July 2007
- WORKING PAPER SERIES - No. 786Details
- Abstract
- There is a long-standing debate about the special nature of banks. Based on a unique dataset of legislative changes in industrial countries, we identify events that strengthen competition policy, analyse their impact on banks and non-financial firms and explain the reactions observed with institutional features that distinguish banking from non-financial sectors. Covering nineteen countries for the period 1987 to 2004, we find that banks are special in that a more competition-oriented regime for merger control increases banks' stock prices, whereas it decreases those of non-financial firms. Moreover, bank merger targets become more profitable and larger. A major determinant of the positive bank returns, after controlling inter alia for the general quality of institutions and individual bank characteristics, is the opaqueness that characterizes the institutional setup for supervisory bank merger reviews. Thus strengthening competition policy in banking may generate positive externalities in the financial system that offset unintended adverse side effects on efficiency introduced through supervisory policies focusing on prudential considerations and financial stability. Legal arrangements governing competition and supervisory control of bank mergers may therefore have important implications for real activity.
- JEL Code
- G21 : Financial Economics→Financial Institutions and Services→Banks, Depository Institutions, Micro Finance Institutions, Mortgages
G28 : Financial Economics→Financial Institutions and Services→Government Policy and Regulation
D4 : Microeconomics→Market Structure and Pricing
- 20 November 2003
- WORKING PAPER SERIES - No. 292Details
- Abstract
- We model the impact of bank mergers on loan competition, banks' reserve holdings and aggregate liquidity. Banks compete in a differentiated loan market, hold reserves against liquidity shocks, and refinance in the interbank market. A merger creates an internal money market that induces financial cost advantages and may increase reserve holdings. We assess changes in liquidity risk and expected liquidity needs for each bank and for the banking system. Large mergers tend to increase expected aggregate liquidity needs, and thus the liquidity provision by the central bank. Comparative statics suggest that a more competitive environment moderates this effect.
- JEL Code
- D43 : Microeconomics→Market Structure and Pricing→Oligopoly and Other Forms of Market Imperfection
G21 : Financial Economics→Financial Institutions and Services→Banks, Depository Institutions, Micro Finance Institutions, Mortgages
G28 : Financial Economics→Financial Institutions and Services→Government Policy and Regulation
L13 : Industrial Organization→Market Structure, Firm Strategy, and Market Performance→Oligopoly and Other Imperfect Markets
- 1 May 2002
- WORKING PAPER SERIES - No. 146Details
- Abstract
- This paper examines the relationship between competition policies and policies to preserve stability in the banking sector. Market structures and the relative importance of the three classical antitrust areas for banking are discussed, showing the predominance of merger review considerations for loan and deposit markets as well as the relevance of cartel considerations for payment systems. A core part of the paper is an analysis of the relative roles of competition and supervisory authorities in the review of bank mergers for the G-7 industrialised countries. A wide variety of approaches emerges, with some countries giving a stronger role to prudential supervisors than to competition authorities and other countries doing it the other way round. In search for explanations for this diversity the theoretical and empirical literature on the competition-stability nexus in banking is surveyed. It turns out that the widely accepted trade-off between competition and stability does not generally hold.
- JEL Code
- G21 : Financial Economics→Financial Institutions and Services→Banks, Depository Institutions, Micro Finance Institutions, Mortgages
G28 : Financial Economics→Financial Institutions and Services→Government Policy and Regulation
G34 : Financial Economics→Corporate Finance and Governance→Mergers, Acquisitions, Restructuring, Corporate Governance
K21 : Law and Economics→Regulation and Business Law→Antitrust Law
L4 : Industrial Organization→Antitrust Issues and Policies