CORRUPTION AND POLITICAL AND ECONOMIC REFORMS: A STRUCTURAL BREAKS APPROACH

In this paper we look at the impact of broad policy reforms on the levels of corruption. We use a structural break approach to identify country-specific time periods in which significant shifts in corruption levels take place. We then correlate these times of change with a set of covariates with specific focus on the impact of democratization, and trade and equity market liberalization. We find robust support for the hypothesis that episodes of reduction in corruption levels tend to be correlated with democratization and equity market liberalization.     

FX spreads and dealer competition across the 24-hour trading day

This study examines the impact of competition on bid-ask spreadsin the spot foreign exchange market. We measure competitionprimarily by the number of dealers active in the market andfind that bid-ask spreads decrease with an increase in competition,even after controlling for the effects of volatility. The expectedlevel of competition is time varying, highly predictable, anddisplays a strong seasonal component that in part is inducedby geographic concentration of business activity over the 24-hourtrading day. Our estimates show that the expected addition ofone more competing dealer lowers the average quoted spread by1.7%     

The components of the bid-ask spread: a general approach

A simple time-series market microstructure model is constructedwithin which existing models of spread components are reconciled.We show that existing models fail to decompose the spread intoall its components. Two alternative extensions of the simplemodel are developed to identify all the components of the spreadand to estimate the spread at which trades occur. The empiricalresults support the presence of a large order processing componentand smaller, albeit significant, adverse selection and inventorycomponents. The spread components differ significantly accordingto trade size and are also sensitive to assumptions about therelation between orders and trades.     

Volatility in the foreign currency futures market

We examine the volatility implications of around-the-clock foreignexchange trading with transaction data on futures contractsfrom the Chicago Mercantile Exchange and the London InternationalFinancial Futures Exchange. We find higher U.S.-European andU.S.-Japanese exchange-rate volatilities during U.S. tradinghours and higher European cross-rate volatilities during Europeantrading hours. While the disclosure of private information throughtrading may partly explain these volatility patterns, we concludethat the increased volatility is more likely driven by macroeconomicnews announcements. An analysis of inter- and intraday dataalso reveals that volatility increases at times that coincidewith the release of U.S. macroeconomic news.     

Money Velocity in an Endogenous Growth Business Cycle with Credit Shocks

The paper sets the neoclassical monetary business cycle model within endogenous growth, adds exchange credit shocks, and finds that money and credit shocks explain much of the velocity variations. The role of the shocks varies across subperiods in an intuitive fashion. Endogenous growth is key to the construction of the money and credit shocks because these have similar effects on velocity, but opposite effects upon growth. The model matches the data's average velocity and simulates well velocity volatility. Its Cagan-like money demand means that money and credit shocks cause greater velocity variation, the higher is the nominal interest rate.     

THE LOGIC OF AUTHORITARIAN BARGAINS

Dictatorships do not survive by repression alone. Rather, dictatorial rule is often explained as an "authoritarian bargain" by which citizens relinquish political rights for economic security. The applicability of the authoritarian bargain to decision-making in non-democratic states, however, has not been thoroughly examined. We conceptualize this bargain as a simple game between a representative citizen and an autocrat who faces the threat of insurrection, and where economic transfers and political influence are simultaneously determined. Our model yields implications for empirical patterns that are expected to exist. Tests of a system of equations with panel data comprising 80 non-democratic states between 1975 and 1999 generally confirm the predictions of the authoritarian-bargain thesis, with some variation across different categories of dictatorship.     

Market microstructure and stock return predictions

To what extent are the empirical regularities implied by marketmicrostructure theories useful in predicting the short-run behaviorof stock returns? A two-equation econometric model of quoterevisions and transaction returns is developed and used to identifythe relative importance of different microstructure theoriesand to make predictions. Microstructure variables and laggedstock index futures returns have in-sample and out-of-samplepredictive power based on data observed at five-minute intervals.The most striking microstructure implication of the model, confirmedby the empirical results, specifies that the expected quotereturn is positively related to the deviation between the transactionprice and the quote midpoint while the expected transactionreturn is negatively related to the same variable.