Fiscal Policy in a Currency Union at the Zero Lower Bound

This paper constructs a two‐country core–periphery New Keynesian model of a currency union to address the interaction between the objectives of regionally directed fiscal policy constrained by a single currency and the aggregate use of fiscal policy in face of the zero lower bound (ZLB) on policy interest rates. We identify an optimal path of aggregate and relative fiscal policy responses to a negative region‐specific demand shock. Our results show that (i) in a monetary union, the optimal policy response to an asymmetric reduction in demand concentrated in the periphery always entails a relative shift of fiscal expenditure toward the worse‐affected regions, (ii) though no aggregate fiscal response is required outside the ZLB, and (iii) optimal union‐wide fiscal policy is expansionary at the ZLB. Therefore, optimal policy always entails an expansion in the periphery at the ZLB, but the optimal fiscal response in the core regions can be either expansionary or contractionary depending on the parameters of the model. However, (iv) fiscal expansion in the core is warranted if the periphery cannot implement an expansion due to constraints on public spending.     

RELATIONSHIP BETWEEN ILLICIT DRUG ENFORCEMENT POLICY AND PROPERTY CRIMES

Some justify the law enforcement emphasis on controlling illicit drug markets by contending that drug users attempting to finance their habits often are responsible for property crime. Yet, in Florida at least, the increased effort to control drug markets has been accompanied by increasing property crime. The fact is that law enforcement resources are scarce, and many resources now being devoted to enforcing drug laws have been shifted away from enforcing laws pertaining to other crimes. This has reduced deterrence for property crime and, as a result, such crime has increased. Thus, the resource reallocations accompanying strong drug law enforcement lead to more property crime.     

Chaos and Nonlinear Dynamics: Application to Financial Markets

After the stock market crash of October 19, 1987, interest in nonlinear dynamics, especially deterministic chaotic dynamics, has increased in both the financial press and the academic literature. This has come about because the frequency of large moves in stock markets is greater than would be expected under a normal distribution. There are a number of possible explanations. A popular one is that the stock market is governed by chaotic dynamics. What exactly is chaos and how is it related to nonlinear dynamics? How does one detect chaos? Is there chaos in financial markets? Are there other explanations of the movements of financial prices other than chaos? The purpose of this paper is to explore these issues.     

Testing the Efficiency of the Canadian-U.S. Exchange Market under the Assumption of no Risk Premium

The efficiency of the Canadian-U.S. exchange market for the current float is examined more extensively than previously. Semi-strong-form tests which admit the lagged spot rate as a predictor are considered in addition to the standard weak-form test. These stronger tests reject the joint null hypothesis of an efficient exchange market and no risk premium for the period ending in October 1976, although not for the entire period. For almost every year the current spot rate provided a better forecast of the future spot rate than did the current forward rate.