Several authors have been interested in Ludwig Hamburger’s attempt to analyze business cycles with a nonlinear endogenous model in the early 1930s. Indeed, Hamburger was one of the first, if not the first, to suggest applying Van der Pol’s relaxation oscillations to business cycles. Ragnar...

It is sometimes pointed out that economic research is prone to move in cycles and react to particular events such as crises and recessions. The present paper analyses this issue through a quantitative analysis by answering two closely related research questions: (1) whether or not there are...

Business cycles are highly irregular fluctuations in economic activity. This article attempts to determine whether there are some properties of business cycles that can make them look more regular. This is done by analysing business cycle dynamics, especially by employing and adjusting to...

A growing body of literature argues that the financial cycle is considerably longer in duration and larger in amplitude than the business cycle and that its distinguishing features became more pronounced over time. This paper proposes an empirical approach suitable to test these hypotheses. We...

This is a note on corruption and underground economy in a Kaldor-type model of the business cycle. It appears that when the economy is booming and underground activities seek to enter the official economy, bureaucrats have the upper hand but until underground businesses cannot tolerate...

A growing body of literature argues that the financial cycle is considerably longer in duration and larger in amplitude than the business cycle and that its distinguishing features became more pronounced over time. This paper proposes an empirical approach suitable to test these hypothe- ses. We...