Over the past decade, questions over the impact of new information technologies on productivity growth trends have played an important role in the formulation of monetary policy, particularly in the United States and Canada. However, formal testing of whether the trend growth rate of aggregate...

This paper investigates the precision of multivariate models of the output gap and considers their implications for the formulation of macroeconomic policy. Multivariate models identify the gap by including information from structural economic relationships, such as Okun's Law, the Phillips...

A stable predictive relationship between inflation and the output gap, often referred to as a Phillips curve, provides the basis for empirical formulations of countercyclical monetary policy in many models. However, evidence for the usefulness of output gap measures for forecasting inflation is...

The authors document a robust and interesting relationship between the real domestic price of oil and real effective exchange rates for Germany, Japan and the United States. They explain why they think the real oil price captures exogenous terms-of-trade shocks and why such shocks could be the...

This paper uses regime-switching econometrics to study stock market crashes and to explore the ability of two very different economic explanations to account for historical crashes. The first explanation is based on historical accounts of quot;manias and panics.quot; Its key features are that...

Several recent papers have presented evidence from foreign exchange and other markets suggesting that the log of excess returns can be characterized as first-order integrated processes (I(1)). This contrasts sharply with the quot;conventionalquot; wisdom that log prices are integrated of order...

This paper tests between fads and bubbles using a new empirical strategy (based on switching-regression econometrics) for distinguishing between competing asset-pricing models. By extending the Blanchard and Watson (1982) model, we show how stochastic bubbles can lead to regime-switching in...

Work on testing for bubbles has caused much debate, much of which has focused on methodology. Monte Carlo simulations reported in Evans (1991) showed that standard tests for unit roots and cointegration frequently reject the presence of bubbles even when such bubbles are present by construction....

We don't have an abstract yet, sorry. But I think the title is pretty descriptive.

In this paper, we use an extension of Hamilton's (1989) Markov switching techniques to describe and analyze stock market returns. Using new tests, we find very strong evidence of switching behaviour. A major innovation of our work is to use a multivariate specification which allows us to examine...