Following the financial crisis of 2007 and the sovereign debt crisis in 2010 that affected the soundness and reduced the strength of public finance in European countries, there has been a growing interest in developing methodologies to the help assess and signal the vulnerability of fiscal policy. Therefore, the aim of this study is to develop a new framework (V-L-D) to assess fiscal vulnerability. V-L-D represents a new methodology on the measurement of fiscal vulnerability that relies on the assumption that vulnerability can occur even during calm times. In comparison with previous methodologies that studied fiscal vulnerability around crisis and fiscal distress times, our framework investigates fiscal vulnerability near fiscal adjustments episodes. Our methodology relies on two distinct indicators: one showing the vulnerabilities indicated by the level of the cyclically adjusted budget balance and distance-to-stability, and one showing the vulnerabilities pointed out through the changes of the cyclically adjusted budget balance and public debt. V-L-D is able to classify fiscal vulnerability into five distinct categories having scores from 0 (no fiscal vulnerability) to 4 (extreme fiscal vulnerability). Using annual data ranging over 1990–2013 for 28 European Union countries, we evidenced 310 episodes of fiscal vulnerability, out of which 128 episodes of low vulnerability, 94 of moderate, 62 of strong, and 26 of extreme fiscal vulnerability. We also found that over 2004–2013, Greece, Portugal, Romania, United Kingdom, Ireland, Spain, and Slovenia were the most fiscally vulnerable countries in the Union. United Kingdom and Greece went through the longest episodes of fiscal vulnerability, counting 12 and 11 consecutive years, respectively. We tested our framework’s effectiveness against the Excessive Deficit Procedure. We found that the overall performance is good: V-L-D assessed moderate fiscal vulnerability during the procedure, strong fiscal vulnerability in the first year when procedure was initiated, and extreme vulnerability one year before the initiation.

In an era of ongoing global development and increasing focus on sustainability, the underground economy persistently identifies novel areas for expansion. This dynamic growth compels states to engage in an ongoing search for effective strategies to regulate and mitigate its effects, while simultaneously addressing the broader implications for economic development. Poverty, financial development, income inequality, and legal framework are analyzed in this paper in relation to the underground economy for the European Union member states between 2004 and 2022 by way of a panel model. Our findings reveal a positive relationship between the levels of poverty among individuals and the underground economy. Conversely, the interplay between the underground economy and both financial development and the legal framework exhibits a detrimental effect. In conclusion, our analysis reveals that the three primary variables examined—poverty, financial development, and legal framework—substantially influence the scale of the underground economy, with important implications for overall economic development and sustainable growth.