An Analysis of Differences in Earnings Between Small and Large Commercial Banks

This paper introduces a simple, yet rich, measure of efficiency changes based on the revenue-generating-ability (RGA) principle. Using this principle, we explain the connections between efficiency changes and the variables, such as pretax profits, interest expense, non-interest expense, profit margins, loan loss provision, and asset quality. These connections are used to explain earnings differences between small and large commercial banks.     

Inflation and the demand for money in Israel

This paper examines the impacts of rational-price expectations and foreign-exchange reform, in addition to adaptive-price expectations, on money-demand in Israel. The regression results are used to determine the upper limit on the amount of seigniorage.     

RANDOM COEFFICIENT MODELS: THEORY AND APPLICATIONS

Abstract. This paper provides an overview of the rationale behind, and the implementation, and uses of, the random coefficient approach to econometric modelling. A simple random coefficient model is presented, and methods for estimating, testing, and validating such a model are described. A more general model is then presented. The general model is shown to include several fixed-coefficient models as special cases and can be estimated incorporating a variety of judgements concerning simplification. Finally, the paper reviews recent applications of random coefficient estimation.     

The Economics of Exchange‐Rate Regimes: A Review Essay

The exchange‐rate regime issue has taken centre‐stage in discussions of international economic policy. Much of the profession appears to have been converted to ‘the hypothesis of the vanishing middle regime’; for countries well‐integrated into world capital markets, there is little, if any, middle ground between floating exchange rates and monetary unification. This paper considers the exchange‐rate‐regime issue in the context of recent books on the subject by W. Max Corden and Morris Goldstein. Both authors prescribe managed floating exchange rates, supplemented with inflation targeting, for emerging‐market economies. Under managed floating, and with a credible monetary policy, the public finances in order, and strengthened debt management and prudential regulation, the exchange rate is free to act as a market gauge for assessing policies and as a mode of conflict resolution. Both authors also argue, however, that no exchange‐rate regime is a Holy Grail. Ultimately, a credible exchange‐rate regime depends upon the trust evoked by governments. There is no exchange‐rate regime, whether of the managed‐floating or hard‐fix variety, that can eradicate a history of failed stabilisation attempts.     

The New Keynesian Phillips Curve and Lagged Inflation: A Case of Spurious Correlation?

The New Keynesian Phillips Curve (NKPC) specifies a relationship between inflation and a forcing variable and the current period's expectation of future inflation. Most empirical estimates of the NKPC, typically based on generalized method of moments (GMM) estimation, have found a significant role for lagged inflation, producing a “hybrid” NKPC. Using U.S. quarterly data, this article examines whether the role of lagged inflation in the NKPC might be due to the spurious outcome of specification biases. Like previous investigators, we employ GMM estimation and, like those investigators, we find a significant effect for lagged inflation. We also use time varying coefficient (TVC) estimation, a procedure that produces consistency under a variety of sources of misspecification. Using two separate measures of expected inflation, we find strong support for the view that, under TVC estimation, the coefficient on expected inflation is near unity and that the role of lagged inflation in the NKPC is spurious.     

THE BENEFITS AND COSTS OF MONETARY UNION IN SOUTHERN AFRICA: A CRITICAL SURVEY OF THE LITERATURE

Abstract.  With the 14 members of the Southern African Development Community (SADC) having set the objective of adopting a common currency for the year 2018, an expanding empirical literature has emerged evaluating the benefits and costs of a common-currency area in Southern Africa. This paper reviews that literature, focusing on two categories of studies: (1) those that assume that a country's characteristics are invariant to the adoption of a common currency and (2) those that assume that a monetary union alters an economy's structure, resulting in trade creation and credibility gains. The literature reviewed suggests that a relatively small group of countries, typically including South Africa, satisfies the criteria necessary for monetary unification. The literature also suggests that, in a monetary union comprising all SADC countries and a regional central bank that sets monetary policy to reflect the average economic conditions (e.g. fiscal balances) in the region, the potential losses (i.e. higher inflation) from giving up an existing credible national central bank, a relevant consideration for South Africa, could outweigh any potential benefits of trade creation resulting from a common currency.     

The theory of monetary integration

Research dealing with the theory of monetary integration is reviewed. After briefly describing the genesis of the theory as foreshadowed in work on optimum currency areas, the paper assesses two main areas of recent research — the analysis of the effects of disturbances on participating countries in a currency area, and reputational considerations. With regard to disturbances, the paper finds that it is difficult to draw clear-out inferences from theoretical work on the optimal degree of exchange rate management and from empirical studies on the effects of shocks. Work on reputational issues is found to suffer from conceptual problems and has generated empirical results that have not supported the hypothesis that participation in a currency area is a sufficient condition to enhance reputation.     

The Greek financial crisis: Growing imbalances and sovereign spreads

We discuss the origins of the Greek financial crisis as manifested in the growing fiscal and current-account deficits since euro-area entry in 2001. We then extend a model typically used to explain risk premia to assess the extent to which credit ratings captured these premia. Next, we estimate a cointegrating relationship between spreads and their long-term fundamental determinants and compare the spreads predicted by this estimated relationship with actual spreads. We find that spreads were significantly below what would be predicted by fundamentals from end-2004 up to the middle of 2005; by contrast, since May 2010, actual spreads have exceeded predicted spreads by some 400 basis points.