Working Papers
2012
June 1, 2012
Systemic Risk and Asymmetric Responses in the Financial Industry
Description: To date, an operational measure of systemic risk capturing non-linear tail comovement between system-wide and individual bank returns has not yet been developed. This paper proposes an extension of the so-called CoVaR measure that captures the asymmetric response of the banking system to positive and negative shocks to the market-valued balance sheets of individual banks. For the median of our sample of U.S. banks, the relative impact on the system of a fall in individual market value is sevenfold that of an increase. Moreover, the downward bias in systemic risk from ignoring this asymmetric pattern increases with bank size. The conditional tail comovement between the banking system and a top decile bank which is losing market value is 5.4 larger than the unconditional tail comovement versus only 2.2 for banks in the bottom decile. The asymmetric model also produces much better estimates and fitting, and thus improves the capacity to monitor systemic risk. Our results suggest that ignoring asymmetries in tail interdependence may lead to a severe underestimation of systemic risk in a downward market.
May 1, 2012
RMB Internationalization: O+L5022nshore/Offshore Links
Description: Among emerging market currencies, the RMB holds the most potential to become widely used internationally, due to China‘s large economic size, diversified trade structure and network, macroeconomic stability, and high growth rates - both current and expected. Yet, foreign access to RMB-denominated assets that could act as global stores of value remains limited due to extensive restrictions on capitals flows. At the same time, the rapid expansion of RMB trade settlement and issuance of RMB-denominated bonds by the Chinese government and corporates in Hong Kong, SAR have created some feedback channels across onshore (CNY) and offshore (CNH) RMB markets. We employed a bivariate GARCH model to understand the inter-linkages between onshore and offshore markets and found that, while developments in the onshore spot market exert an influence on the offshore spot market, offshore forward rates have a predictive impact on onshore forward rates. We also find evidence of volatility spillovers between two markets. Overtime, those spillover channels would be expected to grow as the offshore market further develops.
May 1, 2012
Productivity Growth and Structural Reform in Bulgaria: Restarting the Convergence Engine
Description: Labor productivity levels in Bulgaria lag well behind that in the EU, weighing on the convergence process. Stronger productivity growth would allow Bulgaria to close the income gap with the EU average more quickly and to alleviate the structural problems in its labor market, reflected in its high long–term and youth unemployment. Our analysis of the drivers of labor productivity suggest that for Bulgaria closing the gap with EU standards in the areas of institutional and infrastructure quality, goods market efficiency, higher education, and innovation would permanently boost productivity growth by a total of 1 percentage point a year. This would be enough to close the income gap with the EU average by 2040, compared to the status quo where it would take an additional 10 years.
May 1, 2012
The Effects of Government Spending Under Limited Capital Mobility
Description: This paper studies the effects of government spending under limited international capital mobility, as featured by most developing countries. While external financing of government debt mitigates the crowding-out effect, it generates real appreciation, which contracts traded output and lowers the fiscal multiplier in the short run. The decline of the multiplier is larger when facing debt-elastic country risk premia. Also, government spending is more expansionary with more home bias in government purchases, more sectoral rigidities, and a less flexible exchange rate. Whether the twin-deficit hypothesis holds depends crucially on the extent to which government deficits are financed externally.
May 1, 2012
Quantifying Structural Subsidy Values for Systemically Important Financial Institutions
Description: Claimants to SIFIs receive transfers when governments are forced into bailouts. Ex ante, the bailout expectation lowers daily funding costs. This funding cost differential reflects both the structural level of the government support and the time-varying market valuation for such a support. With large worldwide sample of banks, we estimate the structural subsidy values by exploiting expectations of state support embedded in credit ratings and by using long-run average value of rating bonus. It was already sizable, 60 basis points, as of the end-2007, before the crisis. It increased to 80 basis points by the end-2009.
May 1, 2012
Exchange Rate Pass Through to Prices in Maldives
Description: This study examines the degree of exchange rate pass through (EPRT) into producer and consumer prices in Maldives. ERPT to consumer prices is first estimated using a nonparametric approach. A recursive vector autoregression is then used to model both consumer and producer price changes. The nonparametric estimation indicates that ERPT to consumer prices is very high, both in absolute terms and relative to other countries. The dynamics of ERPT as derived from the empirical estimation indicate that ERPT to consumer and producer prices is significant but not complete, and that the impact of exchange rate changes persists into the second year.
May 1, 2012
Appraising Credit Ratings: Does the CAP Fit Better than the ROC?
Description: ROC and CAP analysis are alternative methods for evaluating a wide range of diagnostic systems, including assessments of credit risk. ROC analysis is widely used in many fields, but in finance CAP analysis is more common. We compare the two methods, using as an illustration the ability of the OECD’s country risk ratings to predict whether a country will have a program with the IMF (an indicator of financial distress). ROC and CAP analyses both have the advantage of generating measures of accuracy that are independent of the choice of diagnostic threshold, such as risk rating. ROC analysis has other beneficial features, including theories for fitting models to data and for setting the optimal threshold, that we show could also be incorporated into CAP analysis. But the natural interpretation of the ROC measure of accuracy and the independence of ROC curves from the probability of default are advantages unavailable to CAP analysis.
May 1, 2012
Bank Capitalization As a Signal
Description: The level of a bank‘s capitalization can effectively transmit information about its riskiness and therefore support market discipline, but asymmetry information may induce exaggerated or distortionary behavior: banks may vie with one another to signal confidence in their prospects by keeping capitalization low, and banks‘ creditors often cannot distinguish among them - tendencies that can be seen across banks and across time. Prudential policy is warranted to help offset these tendencies.
May 1, 2012
Fiscal Consolidation in Southeastern European Countries: The Role of Budget Institutions
Description: This paper assesses the relative strengths and weaknesses of fiscal institutions in ten Southeastern European countries, using recent benchmarking methodologies developed by FAD. The assessment evaluates each country’s understanding of the scale of the fiscal adjustment challenge, its ability to develop a credible consolidation strategy, and its capacity to implement the strategy. Key institutional arrangements, are generally in place, including top-down budgeting and medium-term budget frameworks. Other institutional arrangements require further attention, including macro-fiscal forecasting, fiscal risk analysis, setting fiscal objectives, presence and role of independent fiscal agencies, and top-down parliamentary approval.
May 1, 2012
Dynamic Loan Loss Provisioning: Simulationson Effectiveness and Guide to Implementation
Description: This simulation-based paper investigates the impact of different methods of dynamic provisioning on bank soundness and shows that this increasingly popular macroprudential tool can smooth provisioning costs over the credit cycle and lower banks’ probability of default. In addition, the paper offers an in-depth guide to implementation that addresses pertinent issues related to data requirements, calibration and safeguards as well as accounting, disclosure and tax treatment. It also discusses the interaction of dynamic provisioning with other macroprudential instruments such as countercyclical capital.