This paper examines long-run linkages and possible instabilities in the gold–silver price relationship using daily futures prices over the period from 4 January 2010 to 28 November 2025. The empirical analysis includes unit-root and cointegration tests as well as endogenous structural break...

Using Wine Spectator's Top 100 lists for 1988-2025, this note applies Bai-Perron structural break tests to regional and country shares and identifies three distinct periods: 1988-1997, 1998-2015, and 2016-2025. Real prices decline across phases, with the sharpest drop in the most recent period,...

Several studies have investigated the fiscal sustainability of Latin American and Caribbean (LAC) countries. However, country-specific analyses fail to account for common factors and cross-dependence, while a single-panel approach is inadequate due to the region's economic diversity. Building on...

This study investigates the dynamics of Bitcoin's realized volatility by extending the Heterogeneous Autoregressive (HAR) framework to incorporate external shocks from major financial and commodity markets, namely the NASDAQ-100, Brent crude oil, and gold. To capture potential asymmetries,...

We apply rolling-window econometric methods, including GARCH(1,1) estimation, Bai-Perron structural break detection, CUSUM stability testing, and Granger causality analysis in bivariate VAR frameworks, to analyze the temporal dynamics of market integration in cryptocurrency perpetual futures,...