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Finance and Efficiency: Do Bank Branching Regulations Matter?

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Author Info
Viral V. Acharya (London Business School & CEPR)
Jean Imbs (University of Lausanne - HEC, CEPR & Swiss Finance Institute)
Jason Sturgess (London Business School)

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Abstract

We use portfolio theory to quantify the efficiency of state-level sectoral patterns of production in the United States. On the basis of observed growth in sectoral value added output, we calculate for each state the efficient frontier for investments in the real economy, the efficient Sharpe ratio, and the corresponding weights on investments in different industries. We study how rapidly different states converge to an efficient allocation, depending on access to finance. We find that convergence is faster - in terms of distance to the efficient frontier and improving Sharpe ratios - following intra- and (particularly) interstate liberalization of bank branching restrictions. This effect arises primarily from convergence in the volatility of state output growth, rather than in its average. The realized industry shares of output also converge faster to their efficient counterparts following liberalization, particularly for industries that are characterized by young, small and external finance dependent firms. Convergence is also faster for states that have a larger share of constrained industries, greater distance from the efficient frontier before liberalization and larger geographical area. These effects are robust to industries integrating across states and the endogeneity of liberalization dates. Overall, our results suggest that financial development has important consequences for the efficiency and specialization (or diversification) of investments, in a manner that depends crucially on the variancecovariance properties of investment returns, rather than on their average only.

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Publisher Info
Paper provided by Swiss Finance Institute in its series Swiss Finance Institute Research Paper Series with number 06-36.

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Length: 61 pages
Date of creation: Nov 2006
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Handle: RePEc:chf:rpseri:rp0636

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Web page: http://www.SwissFinanceInstitute.ch
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Related research
Keywords: Financial development Growth Sharpe ratio Volatility Diversification

Other versions of this item:

Find related papers by JEL classification:
E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
F02 - International Economics - - General - - - International Economic Order; Noneconomic International Organizations;; Economic Integration and Globalization: General
F36 - International Economics - - International Finance - - - Financial Aspects of Economic Integration
O16 - Economic Development, Technological Change, and Growth - - Economic Development - - - Financial Markets; Saving and Capital Investment
G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Mortgages
G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation

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  1. Thorsten Beck & Ross Levine & Alexey Levkov, 2007. "Big Bad Banks? The Impact of U.S. Branch Deregulation on Income Distribution," NBER Working Papers 13299, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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