extracting information from big data – bcb research ... · extracting information from big data...
TRANSCRIPT
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Extracting information from Big Data –BCB Research Department´s experience
Sérgio Mikio Koyama
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The views expressed here are those of the author and do not necessarily reflect those of the Central Bank of Brazil or its members.
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… to make research of great importance, we need think in “old
questions… some of the most important questions in
economics and social science have not yet been fully
answered, and the recent availability of big data of various
types allows us, for the first time, to tackle those classic
questions”
Raj Chetty
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Three V’s
• Volume
• Velocity
• Variety
Big Data Concept
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August, 2017
Aggregated data:
- 756 million credit operations (100%)
Granular data (loan-by-loan):
- 614 million credit operations (567,5 million individuals, 46.5 million enterprises)
- 105.5 million borrowers (101 million individuals, 4.5 million enterprises)
about 180 millions new records per month
Credit Information System (SCR)
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System that performs procedures related to the processing and settlement of funds transfer operations, operations with foreign currency or with financial assets and securities.
Having started in 2002, it presents more than 1 billion records, with over 189 million records over the last year
Payment System (SPB)
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• RECOR / SICOR (of rural credit)• SELIC (Treasury Bonds Custody)• CETIP• Foreign Exchange Operations• Bank’s financial information (COSIF)• Census of foreign capital• Expectations system
• RAIS (formal employment record)• CadÚnico (unified registry of social programs)• etc
Databases in BCB
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Cross-subsidy in Credit Markets: Micro Level Evidence from Earmarked Rules in Brazil
Carlos V. de Carvalho (BCB/PUC-Rio)Bruno Martins (BCB-Depep)
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Motivation
• The participation of regulated lending in banks credit
portfolio has increased
30%
32%
34%
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Credit Portfolio Allocation: Official Banks
Regulated Loans: Rural BNDES: OnlendingsRegulated Loans: Real Estate Non-earmarked Loans (right-axis)
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Motivation
• The participation of regulated lending in banks credit
portfolio has increased
70%
72%
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Credit Portfolio Allocation: Private Banks
Regulated Loans: Rural BNDES: OnlendingsRegulated Loans: Real Estate Non-earmarked Loans (right-axis)
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Motivation
• And the return of regulated lending is much lower
than that of non-earmarked credit.
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Gross Credit Return: Non-financial Firms
Non-earmarked Credit Regulated Real Estate CreditSelic Regulated Rural Credit
%
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Government Intervention in Credit Markets: Potential Adverse Effects
• Bank competition, market segmentation and
financial instability
• Prevents the development of capital markets
• Weakens the credit channel of monetary policy
• Fiscal imbalances
• Misallocation of funds
• Cross-subsidy
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Objective
• Using loan level data from SCR, they investigate the
impact of credit regulation on the cost of free-market
loans (non-financial firms): the cross-subsidy effects
• They also explore banks heterogeneous responses:
regulation vs. ownership
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Conclusions
•Regulated lending is subsidized by free loans
Regulated rural credit: positive and relevant impact onmarket based corporate loans rate
around 3.4 p.p. reduction for a 1 p.p. decreasein outstanding rural banks loans to total banksdebt ratio
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Conclusions
smaller effects found for official banks (1.4 p.p. reduction)
negative effects of regulated rural rates on the estimated impact
Regulated real estate credit: not statistically significant effects
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Do Credit Unions Provide Access to Credit in Dire Times?
Leila Aghabarari, World Bank GroupAndre Guettler, Ulm University and IWH
Mahvish Naeem, Ulm UniversityBernardus Van Doornik, Central Bank of Brazil
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Motivation
• Interruptions on bank lending activity can transmitnegative shocks to the real sector
• Transmission of liquidity shocks in the Brazilian bankingmarket using the financial crisis of 2008/2009
• As of 2015, CUs in Brazil have 7.8 million members. Thenetwork of CUs represents around 20% of bank branchesin Brazil
• Use data on firm-bank-quarter level to investigate theimpact on the intensive margin of the same firm that, in thesame point of time, has credit in Credit Unions versus non-Credit Unions.
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Conclusions
• Insurance effect seems to dominate the equity effect
• CUs seem to provide insurance to their members during crisis by reducing lending to a lesser extent compared to non-Cus
• If the CUs are better capitalized, they are able to manage risk better
• CUs may be able to decrease the propagation of negative effects from transmission of negative liquidity shocks to the real economy
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Capital Allocation Across Regions, Sectors and Firms: evidence from a commodity boom in Brazil
Paula Bustos – CEMFIGabriel Garber – Depep BCB
Jacopo Ponticelli – Northwestern
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Does capital generated in agriculture flow to other sectors inthe economy?
Does is relocate regionally? What is the role of the bankingsystem?
Event study: legalization of genetically engineered (GE) soyin Brasil (2003)Classical problem of disentangling supply and demand
Motivation
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Geographic reallocationIdentification strategy
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Conclusions
• Increase deposits in affected municipalities without credit increase
In non-soy producing municipalities:• Intensive margin
• Increase of credit for all sectors• Increase in the number of employees and the wage bill in
industry• Extensive margin
• Inclusion of new customers, especially between micro and small enterprises
• Concentration in industry and services
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Countercyclical Macroprudential Policy:Evidence from an Emerging Country
Rodrigo B Gonzalez (BCB) Bernardus Van Doornik (BCB)
João Barata R Barroso (BCB)José-Luis Peydró (UPF)
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Motivation
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Identification Strategy
∆𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝒕𝒕𝒃𝒃= 𝟏𝟏𝟏𝟏𝟏𝟏 ∗ ∆
𝑪𝑪𝑪𝑪𝑹𝑹𝑹𝑹𝑹𝑹𝑪𝑪𝒕𝒕𝒕𝒕𝒃𝒃 − 𝑪𝑪𝑪𝑪𝑪𝑪𝑪𝑪𝒕𝒕𝑹𝑹𝑹𝑹𝑪𝑪𝑪𝑪𝑪𝑪𝒕𝒕𝑪𝑪𝑪𝑪𝑪𝑪𝒕𝒕
𝒃𝒃
𝑳𝑳𝑳𝑳𝑪𝑪𝒃𝒃𝑳𝑳𝑪𝑪𝑳𝑳𝒕𝒕𝑳𝑳𝑹𝑹𝑹𝑹𝒕𝒕𝒃𝒃
∆𝑪𝑪𝑪𝑪 𝑪𝑪𝑹𝑹𝑹𝑹𝑪𝑪𝑳𝑳𝒕𝒕𝑪𝑪,𝒕𝒕−𝟏𝟏,𝒕𝒕+𝟐𝟐𝒃𝒃
= ∆𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝒕𝒕𝒃𝒃 + ∆𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝒕𝒕𝒃𝒃 + 𝑿𝑿𝑪𝑪,𝒕𝒕−𝟏𝟏𝒃𝒃 + 𝜶𝜶𝑪𝑪
∆𝑪𝑪𝑪𝑪 𝑪𝑪𝑹𝑹𝑹𝑹𝑪𝑪𝑳𝑳𝒕𝒕𝑪𝑪,𝒕𝒕−𝟏𝟏,𝒕𝒕+𝟐𝟐
= 𝒘𝒘∆𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑹𝑪𝑪,𝒕𝒕 + 𝒘𝒘𝑿𝑿𝑪𝑪,𝒕𝒕−𝟏𝟏𝒃𝒃 + 𝑿𝑿𝑪𝑪,𝒕𝒕−𝟏𝟏 + 𝜶𝜶𝑹𝑹∗𝑪𝑪
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• Existence of compulsory effect on credit
• Asymmetry
Conclusions
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Measuring systemic risk under monetary policy shocks: a network approach
Thiago Christiano Silva (BCB)Solange Guerra (BCB)
Michel Alexandre (BCB)Benjamin Tabak (UCB)
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Motivations• How do monetary policy shocks affect the real sector
and the economy’s financial stability
• What is the measure of systemic risk in face ofmonetary policy shocks?
• Which economic sectors have larger systemic riskimplications?
• What is the role of interconnectedness in transmittingmonetary policy shocks to different financial andnonfinancial firms?
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Bank-policymaker
layer
Financial sector
Bank-firmlayer
Real sector
Policymakerlayer
Data
• All banks• Unsecured financial assets(Cetip, BMF&Bovespa, ...)
• Supervisory data
• Only firms listed in stock exchanges
• Brazilian credit register
• Do NOT have thecorporate trade network
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Results - Direct impact of interest shock on the financial sector
• State-owned banks have small sensitiveness regardless of size• Most sensitive banks are small/medium domestic private, particularly
investment banks• Among large banks, foreign private banks are the most sensitive
Large banks Small/medium banks
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Results - Indirect impact (contagion) on the financial sector
• Although large state-owned banks are the least affected to direct impactsof monetary policy shocks, they turn out to be the most affected in terms ofindirect impacts via financial contagion
Large banks Small/medium banks
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Results - Indirect impact (contagion) on the real sector
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Macroprudential analysis – Operation Car Wash
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• “The Impact of Government-Driven Loans in the Monetary Transmission Mechanism: what can we learn from firm-level data?” by Bonomo & Martins, WPS 419• Effects of Government-driven credit on monetary
transmission mechanism and employment• Data from SCR, banks financial information, # employers by
firm
• “Collateral after the Brazilian Creditor Rights Reform” by Van Doornik & Capelletto, WPS 404• Effects of the bankruptcy law in Brazil on corporate debt
structure, collateral liquidity, and collateralization rate. • Data from SCR, banks financial information
Research in the Central Bank of Brazil with Big data
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• “Loan-to-value policy and housing loans: effects on constrained borrowers” by Araujo, Barroso & Gonzales• LTV cap is effective in reducing credit risk , while also
generating less favorable contracts terms to borrowers• Data from SCR, banks financial information, employment data
Research in the Central Bank of Brazil with Big data
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Technological advances are making possible the use of a hugeamount of data to:
perform econometric studies
build statistics with a deeper level of detail
This is playing a fundamental role in the supervision framework, andcontributes to support policy decisions.
Final Remarks
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Thank you!