Financial Inclusion for Financial Stability: Improving Access to Deposits and Bank Resilience in Sync. By Martin Melecky
World Bank Blogs
Tue, Sep 10, 2013
http://blogs.worldbank.org/allaboutfinance/financial-inclusion-financial-stability-improving-access-deposits-and-bank-resilience-sync
From 2006 to 2009, growth of bank deposits dropped by over 12 percentage
points globally. The most affected by the 2008 global crisis were upper
middle income countries that experienced a drop of 15 percentage points
on average. Individual countries such as Azerbaijan, Botswana, Iceland,
and Montenegro switched from deposit growth of 58 percent, 31 percent,
57 percent, and 94 percent in 2007 to deposit declines (or a complete
stop in deposit growth) of -2 percent, 1 percent, -1 percent, -8 percent
in 2009, respectively.
In times of financial stress, depositors get anxious, can run on banks,
and withdraw their deposits (Diamond and Dybvig, 1983). Large depositors
are usually the first ones to run (Huang and Ratnovski, 2011). By the
law of large numbers, correlated deposit withdrawals could be mitigated
if bank deposits are more diversified. Greater diversification of
deposits could be achieved by enabling a broader access to and use of
bank deposits, i.e. involving a greater share of adult population in the
use of bank deposits (financial inclusion). Based on this assumption,
broader financial inclusion in bank deposits could significantly improve
resilience of banking sector funding and thus overall financial
stability (Cull et al., 2012).
In the recent background paper for the World Development Report 2014 (
Han and Melecky, 2013), we investigate the implications of a
broader access to deposits for the
dynamics
of bank deposits during the global financial crisis. Namely, we analyze
whether access to bank deposits by a larger share of a country’s
population can help explain differences in the drop of deposit growth
over 2007-2010 across our sample of 95 countries. We also separately
estimate the differences in the relationship between the drop in deposit
growth and access to deposits for low-income (LIC), middle-income
(MIC), and high-income (HIC) countries.
Our paper responds to an existing gap in the empirical literature
linking greater access to deposits with greater financial (banking
sector) stability. While the literature postulates that an inclusive
financial sector will have a more diversified, stable retail deposit
base that can increase systemic stability, empirical research confirming
existence of such a relationship, especially at the level of the
financial system, is largely absent in the literature (Cull et al.,
2012; Prasad, 2010).
We find that a broader access to and use of bank deposits can
significantly mitigate bank deposit withdrawals or growth slowdowns in
times of financial stress. Specifically, the estimated coefficient on
the variables measuring access to deposits indicates that a 10 percent
increase in the share of people that have access to bank deposits can
mitigate the deposit growth drops (or deposit withdrawal rates) by about
three to eight percentage points. While this finding holds for the
entire sample of HICs, MICs, and LICs, it could be particularly strong
in MICs, where a large share of population still lacks access to bank
deposits, trust in banks is yet to be firmly established, and the
integration in global financial flows is growing.
Our findings have important policy implications. Policy makers face
tradeoffs when deciding whether to focus on reforms to promote financial
development (financial inclusion, innovation, competition, etc.) or
whether to focus on further improvements in financial stability
(microprudential, macroprudential, business conduct supervision, etc.).
However, synergies between promoting financial development and financial
stability can also exist as shown in
our paper.
We recommend that policy makers focus first on taking advantage of such
synergies in their framework for financial sector policy. This framework
is typically formulated in a national financial sector strategy which
sets the development goals in finance, in view of systemic risk
associated with achieving these goals and the risk preference of the
country government. Namely, we argue that involving more people in the
use of bank deposits could be beneficial for people, economic
development, and stability of the financial system alike.
Drawing on
our paper,
the World Development Report 2014, in its chapter on the financial
system, makes similar recommendations; namely, that countries should
strive to promote a broader and responsible use of financial tools not
only to aid economic development and poverty alleviation, but also to
complement the mainstream (macroprudential) policies to enhance
financial stability and prevent financial crises.
Again, these policy efforts, their synergetic effects, and the plan for
their implementation, including the resulting responsibilities of
different government agencies, should be clearly described in the
national financial sector strategy. With proper regulation and oversight
in place, initiatives such as Kenya’s M-PESA and M-KESHO projects (
Demombynes and Thegeya, 2012) or South Africa’s Mzansi accounts (
Bankable Frontier Associates, 2009)
could serve as good examples of promoting a broader use of bank
accounts (deposits) and enhancing the reliability of bank deposit
funding at the same time.
References
-
Bankable Frontier Associates. 2009. "The Mzansi Bank Account Initiative
in South Africa." Report commissioned by FinMark Trust. Bankable
Frontier Associates, Somerville, MA.
-
Cull, Robert, Asli Demirguc-Kunt and Timothy Lyman. 2012. "Financial
Inclusion and Stability: What Does Research Show?" CGAP Brief 71305,
CGAP, Washington, DC.
-
Demombynes, Gabriel and Aaron Thegeya. 2012. "Kenya's Mobile Revolution
and the Promise of Mobile Savings." Policy Research Working Paper 5988.
World Bank, Washington, DC.
-
Diamond, Douglas W. and Philip H. Dybvig. 1983. "Bank Runs, Deposit Insurance, and Liquidity." Journal of Political Economy 91(3): 401–19.
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Huang, Rocco, and Lev Ratnovski. 2011. "The Dark Side of Bank Wholesale Funding." Journal of Financial Intermediation 20: 248–263.
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Prasad, Eswar S. 2010. "Financial Sector Regulation and Reforms in
Emerging Markets: An Overview." NBER Working Paper 16428, Cambridge, MA.