Working Papers
2012
May 1, 2012
Optimal Liquidity and Economic Stability
Description: Monetary aggregates are now much less used as policy instruments as identifying the right measure has become difficult and interest rate transmission has worked well in an increasingly complex financial system. In this process, little attention was paid to the potential spillover of excess liquidity. This paper suggests a notional level of "optimal" liquidity beyond which asset prices will start to rise faster than the GDP deflator, thereby creating a gap between the face value and the real purchasing value of financial assets and widen the wedge in income between those with capital stock and those living on salaries. Such divergence will eventually lead to an abrupt and disorderly adjustment of the asset value, with repercussions on the real sector.
May 1, 2012
Surging Capital Flows to Emerging Asia: Facts, Impacts, and Responses
Description: Net capital flows to emerging Asia rebounded at a record pace following the global financial crisis, raising concerns about overheating and financial stability. This paper documents the size and composition of the most recent surge to Asian emerging markets from a historical perspective and compares developments in the broader economy, asset prices, and corporate variables across the different episodes of strong inflows. We find little evidence of a significant build-up of imbalances and resource misallocation during the most recent surge. We also review country experiences in managing the risks associated with inflows and argue that Asian countries have used regulatory measures during past surges, although there is not strong evidence of their efficacy without supporting monetary and fiscal policies.
May 1, 2012
Alternative Monetary Policy Rules for India
Description: This paper empirically evaluates the operational performance of the McCallum rule, the Taylor rule and hybrid rules in India over the period 1996-2011 using quarterly data, with a view to analytically informing the conduct of monetary policy. The results show that forward-looking formulations of both rules and their hybrid version - setting a nominal output growth objective for monetary policy with an interest rate instrument - outperform contemporaneous and backward-looking specifications, especially when targeting core components of GDP and inflation, and combine the best parts of efficiency and discretion.
May 1, 2012
Mobilizing Revenue in Sub-Saharan Africa: Empirical Norms and Key Determinants
Description: Mobilizing more revenue is a priority for sub-Saharan African (SSA) countries. Countries have to finance their development agendas, and weak revenue mobilization is the root cause of fiscal imbalances in several countries. This paper reviews the experience of low-income SSA countries in mobilizing revenue in recent decades, with two broad aims: identify empirical norms of how much and how fast countries have been able to mobilize more revenue and empirical determinants (panel estimates) of revenue mobilization. The paper finds that (i) the frequency distribution of changes in revenue ratios for SSA low-income countries (LICs) peaks at a pace of about ½-2 percentage points of GDP in the short-to-medium term and at a pace of about 2-3½ percentage points of GDP over the longer term, and that (ii) almost all SSA-LICs managed to increase revenue ratios by more than 2 percentage points of GDP in the short-to-medium term, at least once in the last two decades. The sustainability of large increases in revenue ratios can be an issue, in particular for fragile countries. The panel estimates suggest that structural factors, such as per capita GDP, share of agriculture in GDP, inflation, degree of openness, and rents received from natural resources, are important determinants of tax revenue.
April 1, 2012
Structural Reforms and Regional Convergence
Description: Which structural reforms affect the speed the regional convergence within a country? We found that domestic financial development, trade/current account openness, better institutional infrastructure, and selected labor market reforms facilitate regional convergence. However, these reforms have mixed effects on the growth of regions closer to the country’s development frontier. We also document that regional income disparity and average income are inversely correlated across countries so that speeding up regional convergence increases national income. We also present a theoretical model to discuss these results.
April 1, 2012
Post-Laspeyres: The Case for a New Formula for Compiling Consumer Price Indexes
Description: Consumer price indexes (CPIs) are compiled at the higher (weighted) level using Laspeyres-type arithmetic averages. This paper questions the suitability of such formulas and considers two counterpart alternatives that use geometric averaging, the Geometric Young and the (price-updated) Geometric Lowe. The paper provides a formal decomposition and understanding of the differences between the two. Empirical results are provided using United States CPI data. The findings lead to an advocacy of variants of a hybrid formula suggested by Lent and Dorfman (2009) that substantially reduces bias from Laspeyres-type indexes.
April 1, 2012
Bank Credit, Asset Prices and Financial Stability: Evidence From French Banks
Description: This paper analyses the effect of asset prices on credit growth in France and tries to disentangle credit demand and supply factors, both for the whole 1993-2010 period and during periods of financial instability. Using bank-level panel data at a quarterly frequency, stock price growth is shown to have a significant effect on lending growth over the whole period, but without credit supply factors being singled out. By contrast, housing price growth has a significant effect during periods of financial instability only, even after controlling for credit demand effects. These results show that credit demand factors do play a large role but also provide evidence of tighter credit constraints on households in financial instability periods.
April 1, 2012
Asymmetric Effects of the Financial Crisis: Collateral-Based Investment-Cash Flow Sensitivity Analysis
Description: This paper uses the financial crisis of 2008 as a natural experiment to demonstrate that when measuring investment-cash flow sensitivity, the value of a firm's assets that can be used as collateral should be taken into account. Using panel data on U.S. firms from 1990 to 2011, it was found that the share of physical capital in assets has a strong influence on investment-cash flow sensitivity, which decreased substantially after the crisis when banks changed their expectations about the value of assets on firms' balance sheets. This paper deepens our understanding of firms' investment behavior.
April 1, 2012
Money and Collateral
Description: Between 1980 and before the recent crisis, the ratio of financial market debt to liquid assets rose exponentially in the U.S. (and in other financial markets), reflecting in part the greater use of securitized assets to collateralize borrowing. The subsequent crisis has reduced the pool of assets considered acceptable as collateral, resulting in a liquidity shortage. When trying to address this, policy makers will need to consider concepts of liquidity besides the traditional metric of excess bank reserves and do more than merely substitute central bank money for collateral that currently remains highly liquid.
April 1, 2012
Fiscal Policies and Rules in the Face of Revenue Volatility within Southern Africa Customs Union Countries (SACU)
Description: Following the onset of the global economic crisis in 2008, SACU member countries have witnessed a significant growth slowdown, and a deterioration of their fiscal balances. This paper (i) assesses options for the design of the needed fiscal consolidation, and (ii) discussed medium-term fiscal policy rules that would help maintain a sound fiscal stance once consolidation has taken place. The main messages are: (i) government consumption cuts appears to minimize the negative impact on growth, and would be appropriate given the relatively large size of the public sector in each country, (ii) fiscal rules could be of particular interest for SACU members notably, a new customs revenue-sharing formula, procedural rules to strengthen budget process, and numerical rules at the national level.