A popular and long-standing view is that social security is a means for young, unemployed people to "purchase" jobs from older workers. Can social security, by encouraging retirement and hence creating job vacancies for the young, improve the allocation of workers to jobs? Maybe, according to a...

Synchronization, a basic nonlinear phenomenon, is widely observed in diverse complex systems studied in physical, biological and other natural sciences, as well as in social sciences, economy and finance. While studying such complex systems, it is important not only to detect synchronized...

The question addressed is whether or not childhood epidemics such as measles and chickenpox are characterized by low-dimensional chaos. We propose a new method for the detection and extraction of hidden periodic components embedded in an irregular cyclical series, and study the characterization...

In this article Joydeep Bhattacharya and Joseph Haslag explore the effect of fiscal policy actions on long-run prices and the inflation rate. They study a model economy in which the central bank is not independent. Indeed, the government explicitly relies on the central bank for a predetermined...

In this article Joydeep Bhattacharya and Joseph Haslag explore the effect of fiscal policy actions on long-run prices and the inflation rate. They study a model economy in which the central bank is not independent. Indeed, the government explicitly relies on the central bank for a predetermined...

We investigate sunspot equilibria in a static, one-commodity model with taxes and transfers denominated in money units. Volatility in this economy is purely monetary, since the only uncertainty is about the price level. We construct simple, robust examples of sunspot equilibria that are not mere...