The over-hyped Dot.com revolution bubbled and crashed at the end of the 1990s, leaving a largely unused physical and virtual infrastructure that eventually supported the rise of social media that did-indeed-transform life. Not necessarily in a good way. As Robert Gordon famously claimed, you can...

This paper investigates the presence and timing of explosive price dynamics in major listed real estate markets over the period 04 January 2011 - 11 February 2026. The analysis focuses on four benchmark indices: the FTSE EPRA Nareit Developed Europe Index, the FTSE Nareit All Equity REITs Index...

While there is a large body of literature on oil uncertainty-equity prices and/or returns nexus, an associated important question of how oil market uncertainty affects stock market bubbles remains unanswered. In this paper, we first use the Multi-Scale Log-Periodic Power Law Singularity...

Financial bubbles and crashes have repeatedly caused economic turmoil notably but not only during the 2008 financial crisis. However, both in the popular press as well as scientific publications, the meaning of bubble is sometimes unspecified. Due to the multitude of bubble definitions, we...

Queen Anne's Bounty was a corporation created in 1704 to redistribute income within the Anglican clergy. Structurally a saver needing a liquid asset, the corporation pursued a conservative strategy of investing in the dominant form of government debt, adapting as the market changed. It was...

Britain's debt was nil in 1688 and 60% of GDP in 1717. From 1717 to 1722 the debt was restructured, including through the South Sea operation of 1720. I discuss the reasons for the restructuring and the tensions it revealed between taxpayers and creditors. The South Sea bubble turned the...

We consider an economy with overlapping generations of relatively patient consumers who live for two periods. There is within-cohort heterogeneity in old-age endowments that depends on an aggregate state. That state is independent and identically distributed across generations. We assume...

This study leverages the Log-Periodic Power Law Singularity (LPPLS) confidence indicator to effectively identify bubbles in agricultural commodity markets. We analyze five major grain price indices reported by the International Grains Council (IGC) from January 2000 to April 2023, successfully...

Financial assets often exhibit explosive price surges followed by abrupt collapses, alongside persistent volatility clustering. Motivated by these features, we introduce a mixed causal-noncausal invertible-noninvertible autoregressive moving average generalized autoregressive conditional...

This study aims to identify and analyze speculative bubbles in the Tunisian stock market from 2004 to 2023 and examine the evolution of return volatility during these periods.The research uses the Supremum Augmented Dickey-Fuller (SADF) and Generalized Supremum Augmented Dickey-Fuller (GSADF)...

The study examines housing affordability in Germany from 2017 to 2023 in light of rising real estate prices and challenges in the housing market. It uses the Housing Affordability Index to identify trends and patterns and propose policy measures to tackle the problems. The results show regional...