Working Papers
2014
November 19, 2014
Identifying Speculative Bubbles: A Two-Pillar Surveillance Framework
Description: In the aftermath of the global financial crisis, the issue of how best to identify speculative asset bubbles (in real-time) remains in flux. This owes to the difficulty of disentangling irrational investor exuberance from the rational response to lower risk based on price behavior alone. In response, I introduce a two-pillar (price and quantity) approach for financial market surveillance. The intuition is straightforward: while asset pricing models comprise a valuable component of the surveillance toolkit, risk taking behavior, and financial vulnerabilities more generally, can also be reflected in subtler, non-price terms. The framework appears to capture stylized facts of asset booms and busts—some of the largest in history have been associated with below average risk premia (captured by the ‘pricing pillar’) and unusually elevated patterns of issuance, trading volumes, fund flows, and survey-based return projections (reflected in the ‘quantities pillar’). Based on a comparison to past boom-bust episodes, the approach is signaling mounting vulnerabilities in risky U.S. credit markets. Policy makers and regulators should be attune to any further deterioration in issuance quality, and where possible, take steps to ensure the post-crisis financial infrastructure is braced to accommodate a re-pricing in credit risk.
November 14, 2014
Slowdown in Emerging Markets: Sign of a Bumpy Road Ahead?
Description: Following very strong growth during the period 2000–12, emerging market economies (EMEs) experienced a slowdown in the last couple of years. This paper examines the supply-side drivers of the strong growth performance of 63 EMEs and investigates if the recent slowdown in growth is transitory or a more permanent phenomenon. We find that on average the recent slowdown is explained equally by structural and cyclical factors, although there are large variations across countries and regions. While the cyclical component of the slowdown can be corrected by countercyclical policies (provided that there is sufficient policy space), structural bottlenecks are harder to address. Given the expected moderation of capital accumulation and some natural constraints on labor, the strong growth momentum of 2000–12 is unlikely to be repeated going forward, unless TFP performance improves significantly via structural reforms.
November 13, 2014
World Saving
Description: This paper presents new evidence on the behavior of saving in the world, by extending previous empirical research in five dimensions. First, it is based on a very large and recent database, covering 165 countries from 1981 to 2012. Second, it conducts a robustness analysis across different estimation techniques. Third, the empirical search is expanded by including potential saving determinants identified by theory but not previously considered in the empirical literature. Fourth, the paper explores differences in saving behavior nesting the 2008-10 crisis period and four different country groups. Finally, it also searches for commonalities and differences in behavior across national, private, household, and corporate saving rates. The results confirm in part existing research, shed light on some ambiguous or contradictory findings, and highlight the role of neglected determinants. Compared to the literature, we find a larger number of significant determinants of saving rates, using different estimators, for different periods and country groups, and for different saving aggregates.
November 12, 2014
Limiting Taxpayer "Puts" - An Example from Central Counterparties
Description: Nonbanks such as central counterparties (CCPs) are a useful lens to see how regulators view the role of the lender-of-last-resort (LOLR). This paper explores the avenues available when a nonbank failure is likely, specifically by considering the options of keeping CCPs afloat. It is argued that CCPs have, by regulatory fiat, become “too important to fail,” and thus the imperative should be greater loss-sharing by all participants that better align the distribution of risks and rewards of CCPs, the clearing members and derivative end-users. In the context of LOLR, the proposed variation margin gains haircut (VMGH) is discussed as a way of limiting the taxpayer put.
November 12, 2014
Do IMF-Supported Programs Catalyze Donor Assistance to Low-Income Countries?
Description: This study explores whether IMF-supported programs in low-income countries (LICs) catalyze Official Development Assistance (ODA). Based on a comprehensive set of ODA measures and using Propensity Score Matching approach to address selection bias, we show that programs addressing policy or exogenous shocks have a significant catalytic impact on both the size and the modality of ODA. Moreover, the impact is greatest when LICs are faced with substantial macroeconomic imbalances or large shocks. Nevertheless, when countries attracting similar donor assistance before shocks are matched results for bilateral ODA turn insignificant, suggesting that the catalytic impact is attributed primarily to multilateral ODA.
October 30, 2014
Fiscal Devaluation in a Monetary Union
Description: Using a DSGE model calibrated to the euro area, we analyze the international effects of a fiscal devaluation (FD) implemented as a revenue-neutral shift from employer's social contributions to the Value Added Tax. We find that a FD in ‘Southern European countries’ has a strong positive effect on output, but mild effects on the trade balance and the real exchange rate. Since the benefits of a FD are small relative to the divergence in competitiveness, it is best addressed through structural reforms.
October 30, 2014
Policy and Spillover Analysis in the World Economy: A Panel Dynamic Stochastic General Equilibrium Approach
Description: This paper develops a structural macroeconometric model of the world economy, disaggregated into forty national economies. This panel dynamic stochastic general equilibrium model features a range of nominal and real rigidities, extensive macrofinancial linkages, and diverse spillover transmission channels. A variety of monetary policy analysis, fiscal policy analysis, spillover analysis, and forecasting applications of the estimated model are demonstrated. These include quantifying the monetary and fiscal transmission mechanisms, accounting for business cycle fluctuations, and generating relatively accurate forecasts of inflation and output growth.
October 30, 2014
Official Financial Flows, Capital Mobility, and Global Imbalances
Description: We use a cross-country panel framework to analyze the effect of net official flows (chiefly foreign exchange intervention) on current accounts. We find that net official flows have a large but plausible effect on current account balances. The estimated effects are larger with instrumental variables (42 cents to the dollar on average compared to 24 without instruments), reflecting a possible downward bias in regressions without instruments owing to an endogenous response of net official flows to private financial flows. We consistently find larger impacts of net official flows when international capital flows are restricted and smaller impacts when capital is highly mobile. A further result is that there is an important positive effect of lagged net official flows on current accounts that we believe operates through the portfolio balance channel.
October 28, 2014
Non-Defaultable Debt and Sovereign Risk
Description: We quantify gains from introducing non-defaultable debt as a limited additional financing option into a model of equilibrium sovereign risk. We find that, for an initial (defaultable) sovereign debt level equal to 66 percent of trend aggregate income and a sovereign spread of 2.9 percent, introducing the possibility of issuing non-defaultable debt for up to 10 percent of aggregate income reduces immediately the spread to 1.4 percent, and implies a welfare gain equivalent to a permanent consumption increase of 0.9 percent. The spread reduction would be only 0.1 (0.2) percentage points higher if the government uses nondefaultable debt to buy back (finance a “voluntary” debt exchange for) previously issued defaultable debt. Without restrictions to defaultable debt issuances in the future, the spread reduction achieved by the introduction of non-defaultable debt is short lived. We also show that allowing governments in default to increase non-defaultable debt is damaging at the time non-defaultable debt is introduced and inconsequential in the medium term. These findings shed light on different aspects of proposals to introduce common euro-area sovereign bonds that could be virtually non-defaultable.
October 27, 2014
Gross Private Capital Flows to Emerging Markets: Can the Global Financial Cycle Be Tamed?
Description: This paper assesses empirically the key drivers of private capital flows to a large sample of emerging market economies in the last decade. It analyzes the effect of the global financial cycle, measured by the VIX, on capital flows and investigates the role of fundamentals and country characteristics in mitigating or amplifying its effect. Using interaction models, we find the effect of the VIX to be non-linear. For low levels of the VIX, capital flows are driven by fundamental factors. During periods of stress, the VIX becomes the dominant driver of capital flows while other determinants, with the exception of interest rate differentials, lose statistical significance. Our results also suggest that the effect of global financial conditions on gross private capital flows increases with the host country’s level of financial sector development. Finally, our results imply that countries cannot fully insulate themselves from global financial shocks, unless creating a fragmented global financial system.