Working Papers
2013
February 6, 2013
Monetary Transmission Mechanism in the East African Community: An Empirical Investigation
Description: Do changes in monetary policy affect inflation and output in the East African Community (EAC)? We find that (i) Monetary Transmission Mechanism (MTM) tends to be generally weak when using standard statistical inferences, but somewhat strong when using non-standard inference methods; (ii) when MTM is present, the precise transmission channels and their importance differ across countries; and (iii) reserve money and the policy rate, two frequently used instruments of monetary policy, sometimes move in directions that exert offsetting expansionary and contractionary effects on inflation—posing challenges to harmonization of monetary policies across the EAC and transition to a future East African Monetary Union. The paper offers some suggestions for strengthening the MTM in the EAC.
February 1, 2013
Competition among Exchanges and Enforcement Policy
Description: In this paper, we explore how competition among stock exchanges, operated as self-regulatory organizations (SROs), affects the design of their members' surveillance. We develop a model where two for-profit SROs compete for trading volume, while brokers execute transactions on behalf of the investors and may misreport the true cash flow. The SROs can deter a fraud by announcing an investigation and imposing a monetary penalty.The success of the investigation depends upon both the amount of resources devoted to monitoring and the efficiency of monitoring technologies. We show that when contracts are incomplete and investors do not have perfect information about the monitoring efficiency, competition among exchanges induces a race to the bottom in enforcement policy and a reduction in total welfare, compared to the case of a monopolist SRO.
February 1, 2013
Fiscal Consolidation and the Cost of Credit: Evidence from Syndicated Loans
Description: We examine how the cost of corporate credit varies around fiscal consolidations aimed at reducing government debt. Using a new dataset on fiscal consolidations and syndicated corporate loan data, we find that loan spreads increase with fiscal consolidations, especially for small firms, domestic firms, and for firms with limited alternative financing sources. These adverse effects are mitigated substantially if consolidations are large, and can be avoided if consolidations are also accompanied with more adaptable macroeconomic policies and implemented by a stable government. These findings suggest that lenders price the short-term recessionary effects in loans but large consolidations can reduce or undo the increase in spreads, especially under favorable country conditions, by signaling credibility and creating expansionary expectations.
February 1, 2013
Boosting Competitiveness to Grow Out of Debt: Can Ireland Find a Way Back to Its Future?
Description: This paper investigates the prospects for Ireland to grow its economy against the backdrop of high indebtedness. The paper uses vector autoregressive analysis to explore the interlinkages among competitiveness, exports, economic growth, and fiscal performance. The emerging conclusion is that Ireland, which has regained cost competitiveness following the crisis-driven fall in domestic prices, is poised to return to its path of strong exports and economic growth and lower imbalances provided that it maintains competitiveness, though a pickup in external demand is critical. Three main findings underpin this conclusion. First, external demand is an important driver of exports and also the single most important determinant of Ireland’s GDP and government revenue. Second, declines in price competitiveness, featured by real effective exchange rate (REER) appreciations, restrain exports and economic growth. Third, exports boost output, which in turn enhances fiscal performance.
January 31, 2013
Determinants of Bank Interest Margins in Sub-Saharan Africa
Description: Financial intermediation is low in sub-Saharan Africa (SSA) compared to other regions of the world. This paper examines the determinants of bank interest margins using a sample of 456 banks in 41 SSA countries. The results show that market concentration is positively associated with interest margins, but the impact depends on the level of efficiency of each bank. In particular, compared to inefficient banks, efficient ones increase their margins more in concentrated markets. This indicates that policies that promote competition and reduce market concentration would help lower interest margins in SSA. The results also show that bank-specific factors such as credit risk, liquidity risk, and bank equity are important determinants of interest margins. Finally, interest margins are sensitive to inflation, but not to economic growth or public or foreign ownership. There are regional differences within SSA regarding the level of interest margins even after controlling for other factors.
January 31, 2013
International Reserves and Rollover Risk
Description: Two striking facts about international capital flows in emerging economies motivate this paper: (1) Governments hold large amounts of international reserves, for which they obtain a return lower than their borrowing cost. (2) Purchases of domestic assets by nonresidents and purchases of foreign assets by residents are both procyclical and collapse during crises. We propose a dynamic model of endogenous default that can account for these facts. The government faces a trade-off between the benefits of keeping reserves as a buffer against rollover risk and the cost of having larger gross debt positions. Long-duration bonds, the countercyclical default premium, and sudden stops are important for the quantitative success of the model.
January 31, 2013
Exchange Rate Liberalization in Selected Sub-Saharan African Countries Successes, Failures, and Lessons
Description: Many sub-Saharan African (SSA) countries liberalized their economies in the 1980s and early 1990s. This paper reviews the foreign exchange regime reforms in selected SSA, and their associated macroeconomic policies and economic performance during and after these reforms were undertaken. Before liberalization, most of the reviewed countries were characterized by extensive foreign exchange rationing, sizeable black market premiums, and declining per capita real income. Today, the countries that successfully reformed look markedly different. Rationing and parallel market spreads are a distant memory, and per capita income has increased sharply.
January 31, 2013
Inward and Outward Spillovers in the SACU Area
Description: Spillovers from South Africa into the other members of the Souther Africa Customs Union (known as the BLNS for Botstwana, Lesotho, Namibia, and Swaziland) are substantial reflecting sizeable real and financial interlinkages. However, shocks to real GDP growth in South Africa do not seem to systematically affect growth developments in BLNS countries as a group. Nevertheless, vector autoregressions, which allow country-specific parameters, suggest some strong spillovers onto the smaller economies.
January 31, 2013
Wholesale Bank Funding, Capital Requirements and Credit Rationing
Description: This paper analyzes how different types of bank funding affect the extent to which banks ration credit to borrowers, and the impact that capital requirements have on that rationing. Using an extension of the standard Stiglitz-Weiss model of credit rationing, unsecured wholesale finance is shown to amplify the credit market impact of capital requirements as compared to funding by retail depositors. Unsecured finance surged in the pre-crisis years, but is increasingly replaced by secured funding. The collateralization of wholesale funding is found to expand the extent of credit rationing.
January 30, 2013
Revisiting the Link Between Finance and Macroeconomic Volatility
Description: This paper examines the impact of financial depth on macroeconomic volatility using a dynamic panel analysis for 110 advanced and developing countries. We find that financial depth plays a significant role in dampening the volatility of output, consumption, and investment growth, but only up to a certain point. At very high levels, such as those observed in many advanced economies, financial depth amplifies consumption and investment volatility. We also find strong evidence that deeper financial systems serve as shock absorbers, mitigating the negative effects of real external shocks on macroeconomic volatility. This smoothing effect is particularly pronounced for consumption volatility in environments of high exposure - when trade and financial openness are high - suggesting significant gains from further financial deepening in developing countries.