{"title":"Conditional forecast for public debt and threshold effects: Evidence from South EU countries","authors":"Dimitrios Asteriou , Dimitrios Koufopoulos , Konstantinos Spanos","doi":"10.1016/j.jeca.2025.e00430","DOIUrl":"10.1016/j.jeca.2025.e00430","url":null,"abstract":"<div><div>In this study, we employ a Bayesian Seemingly Unrelated regression (SUR) model for the South EU countries to make a conditional forecast for the public debt in a medium term-horizon (six years ahead). Our forecast incorporates multiple macroeconomic shocks, specifically: (i) fiscal austerity, captured through changes in government budget balances; (ii) the international business cycle, proxied by US GDP growth; and (iii) energy cost shocks, proxied by fluctuations in global oil prices. Adopting various scenarios, the results show that lower budget deficit and higher economic growth lead to the fastest downward debt trajectory. The findings also suggest that the optimum level of budget deficit limit is 2.7 % of GDP and is achieved when government expenditures and revenue are lower than 40.9 % and 38.19 % respectively. Interestingly, the international business cycle plays a fundamental role, since economic growth of the South EU countries exerts even more pressure to debt reduction when US GDP growth is higher than 3 %. The effect of inflation on debt conditioned by energy cost, the results indicate that inflation may cause more debt when oil price is high, but this effect seems to be for a short-term period. The main policy implication from the results is that the downward trajectory of debt hinges on sustainable fiscal limits and economic expansion.</div></div>","PeriodicalId":38259,"journal":{"name":"Journal of Economic Asymmetries","volume":"32 ","pages":"Article e00430"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144536128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The asymmetric effects of medical tourism and information technology on economic growth: evidence from panel quantile regression","authors":"Chor-Foon Tang , Karoon Suksonghong","doi":"10.1016/j.jeca.2025.e00433","DOIUrl":"10.1016/j.jeca.2025.e00433","url":null,"abstract":"<div><div>Medical tourism is a sub-segment of tourism that is lucrative for recipient countries. Estimated at US$11.56 billion in 2022, the market value of medical tourism is projected to reach US$53.51 billion in 2028. Given the importance of that industry, this study attempts to contribute to the literature on medical tourism, information and telecommunication technology (ICT) and economic growth. Unlike previous related studies, we explore the asymmetric effects of medical tourism and ICT on economic growth using panel quantile regression, using a balanced 2013–2021 panel sample across 48 countries. To enhance robustness and reliability, our growth model accommodates various control variables (e.g. capital, population growth, energy consumption). We found that although medical tourism and ICT contribute significantly to economic growth, this effect tends to be asymmetric. Moreover, the effect of ICT is greater in low- and middle-income countries, whereas the effect of medical tourism is greater in upper-middle-income countries.</div></div>","PeriodicalId":38259,"journal":{"name":"Journal of Economic Asymmetries","volume":"32 ","pages":"Article e00433"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144771033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chokri Zehri , Abdullah Alsadan , Latifa Saleh ben Ammar
{"title":"Asymmetric impacts of geopolitical risks on energy Trade: Divergent vulnerabilities in emerging vs. advanced economies","authors":"Chokri Zehri , Abdullah Alsadan , Latifa Saleh ben Ammar","doi":"10.1016/j.jeca.2025.e00427","DOIUrl":"10.1016/j.jeca.2025.e00427","url":null,"abstract":"<div><div>This study investigates the system-wide consequences of rising geopolitical risks (GPR) on global energy trade, emphasizing asymmetric vulnerabilities between emerging market economies (EMEs) and advanced economies (AEs)—a critical gap in existing scholarship. Combining autoregressive distributed lag (ARDL) modeling and impulse response analyses on 55 countries (1990–2023), we assess how geopolitical tensions disrupt energy trade dynamics, accounting for global volatility and domestic economic conditions. Our findings uncover marked asymmetries: while geopolitical risks persistently suppress energy trade, with long-term effects outweighing transient shocks, EMEs are disproportionately destabilized due to their heavy reliance on energy exports and weaker institutional capacity. AEs, conversely, demonstrate greater resilience through diversified economies, strategic reserves, and policy flexibility, though post-2008 geopolitical fragmentation and financial instability intensify disruptions across all economies. Impulse response simulations reveal that geopolitical shocks trigger sharper declines in energy trade flows for EMEs, with steeper and more prolonged contractions than AEs. Compounding these unequal burdens, escalating trade taxes strain EMEs’ fiscal stability and energy security, whereas AEs deploy fiscal buffers to cushion shocks. By exposing how geopolitical risks cascade through energy systems, the study underscores the urgency of multilateral cooperation to address structurally embedded asymmetries, particularly the fragility of EMEs in global energy frameworks.</div></div>","PeriodicalId":38259,"journal":{"name":"Journal of Economic Asymmetries","volume":"32 ","pages":"Article e00427"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Green transitions and asymmetric volatility spillovers: A time-varying GAS copula analysis of clean and fossil energy markets","authors":"Mehdi Mili , Ebrahim Sohrab , Tahar Hamza","doi":"10.1016/j.jeca.2025.e00439","DOIUrl":"10.1016/j.jeca.2025.e00439","url":null,"abstract":"<div><div>This study examines the asymmetric and time-varying volatility connectedness between clean and fossil energy markets, focusing on nonlinear dependencies and tail risk dynamics. Using a GJR-GARCH model combined with a time-varying GAS copula, we analyze co-movements and tail dependence between clean energy indices and three major fossil fuel markets: Brent Crude, Natural Gas, and Heating Oil. This approach captures features like fat tails, volatility clustering, and asymmetric spillovers, offering deeper insights into inter-market relationships under stress. Results reveal stronger tail co-movements and volatility spillovers during downturns — patterns that static models often miss. The GAS copula framework effectively tracks evolving correlations and volatilities, outperforming constant Copula models. Risk assessments using Value at Risk and Expected Shortfall emphasize the asymmetric nature of downside risk, showing that diversification benefits vary across market regimes. These findings emphasize the need to model asymmetries for more resilient portfolio construction and climate-sensitive risk management in energy finance. They carry important implications for energy portfolio diversification, climate policy design, and the management of systemic financial risk in energy markets.</div></div>","PeriodicalId":38259,"journal":{"name":"Journal of Economic Asymmetries","volume":"32 ","pages":"Article e00439"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145568265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sofia Vidalis , Iordanis Petsas , Jinghan Cai , Runqing Guan , Yunzhi Lu , Aram Balagyozyan
{"title":"Does female participation improve firm value? Board gender diversity reform and asymmetric market responses","authors":"Sofia Vidalis , Iordanis Petsas , Jinghan Cai , Runqing Guan , Yunzhi Lu , Aram Balagyozyan","doi":"10.1016/j.jeca.2025.e00440","DOIUrl":"10.1016/j.jeca.2025.e00440","url":null,"abstract":"<div><div>In this paper we use the board gender diversity reforms as a quasi-natural experiment to study how female participation in the board affects firm values. We find that the market shows asymmetric responses in the short run vs. in the long run: the Jensen's alphas of the firms significantly increase after the board gender reform, but the short-run cumulative abnormal returns are significantly negative. Notably, these effects are stronger in European countries, where integrated regulatory frameworks amplify the positive impact on firm performance. Our empirical results are highly consistent with the literature that documents board gender diversity promotes innovations (Griffin et al., 2021): Short-run investor skepticism, transitional frictions, together with a constant beta may lead to a temporary negative CAR, but in the long run, higher level innovations lead to lower beta and better performance, resulting in higher Jensen's alpha.</div></div>","PeriodicalId":38259,"journal":{"name":"Journal of Economic Asymmetries","volume":"32 ","pages":"Article e00440"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145415055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Regime-switching model estimates the impact of bank liquidity on bank performance across G20 countries: a moderate role for solvency, total loans, and total debt","authors":"Malek Abaab , Mohamed Drira , Kamel Helali","doi":"10.1016/j.jeca.2025.e00442","DOIUrl":"10.1016/j.jeca.2025.e00442","url":null,"abstract":"<div><div>This study employs a Panel Smooth Transition Autoregressive (PSTAR) model to investigate the impact of bank liquidity on bank performance, using a sample of 113 banks across 14 G20 countries from 2000 to 2022. The empirical findings reveal a nonlinear relationship characterized by two LDR thresholds at 51.558 and 54.022. In the first regime, bank liquidity exerts an adverse effect on performance, reflecting the costs of excessive idle reserves. In the second regime, the impact of liquidity turns positive, albeit moderate, indicating that banks begin to deploy their liquid resources more efficiently. In the third regime, the positive effect intensifies, with a stronger coefficient, demonstrating that optimal liquidity levels can significantly enhance profitability. Robustness checks using the system GMM approach confirm this nonlinear, inverted-U relationship, with a positive effect of 0.067 and a negative squared term of 0.64e<sup>−3</sup>, highlighting diminishing marginal returns to liquidity at higher levels. Furthermore, the analysis uncovers significant, positive interaction effects: liquidity combined with solvency strengthens bank performance; liquidity deployed through loans amplifies profitability; and the interaction between liquidity and debt ratios also positively affects performance. These findings indicate that regulators and central banks should adopt flexible liquidity policies that encourage banks to deploy excess funds productively while maintaining adequate buffers, with substantial capital and prudent leverage frameworks enhancing financial stability and sustainable profitability across G20 banking systems.</div></div>","PeriodicalId":38259,"journal":{"name":"Journal of Economic Asymmetries","volume":"32 ","pages":"Article e00442"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145464864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stock market sensitivities to European monetary policy","authors":"Juan M. Nave, Javier Ruiz","doi":"10.1016/j.jeca.2025.e00437","DOIUrl":"10.1016/j.jeca.2025.e00437","url":null,"abstract":"<div><div>In this paper, we analyze the transmission of common monetary policy shocks in the euro area to its main stock markets. To this end, we implement SVAR models where the ECB monetary policy is modeled as a function of euro area aggregate economic factors and global economic conditions, which we proxy using US economic variables. Our results suggest, in line with economic theory, that the transmission of monetary policy to euro area stock markets exhibits heterogeneity driven by differences in the characteristics of listed firms. To investigate the sources of this heterogeneity, we test the hypothesis that the sectoral composition of financial markets explains the variation in responses. However, our findings provide evidence against this hypothesis – differences in the reaction of stock markets to monetary policy shocks are not fully accounted for by their sectoral composition.</div></div>","PeriodicalId":38259,"journal":{"name":"Journal of Economic Asymmetries","volume":"32 ","pages":"Article e00437"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145094913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
António Afonso , José Alves , João Jalles , Sofia Monteiro
{"title":"Energy price dynamics in the face of uncertainty shocks and the role of exchange rate regimes: A global cross-country analysis","authors":"António Afonso , José Alves , João Jalles , Sofia Monteiro","doi":"10.1016/j.jeca.2025.e00425","DOIUrl":"10.1016/j.jeca.2025.e00425","url":null,"abstract":"<div><div>This paper investigates the impact of geopolitical risk (GPR) and global uncertainty (WUI) on energy prices across 185 economies from 1980 to 2023, while accounting for the role of exchange rate regimes. Using a panel fixed-effects model and a panel SVAR framework, we examine whether uncertainty shocks translate into energy price inflation and how exchange rate regimes influence these dynamics. The results indicate that geopolitical risk and global uncertainty have significant effects on energy prices, with stronger price reactions under flexible exchange rate regimes. We further decompose the effects by country classification, revealing that oil-exporting economies and emerging markets exhibit distinct responses. Our findings highlight the importance of exchange rate policies in mitigating uncertainty-driven energy price volatility. The paper contributes to the literature by providing a global empirical perspective on uncertainty-energy price interactions, with relevant implications for policymakers managing exchange rate regimes and energy market stability.</div></div>","PeriodicalId":38259,"journal":{"name":"Journal of Economic Asymmetries","volume":"32 ","pages":"Article e00425"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The macroeconomic effects of climate policy uncertainty: Evidence from Portugal","authors":"Hugo Morão","doi":"10.1016/j.jeca.2025.e00426","DOIUrl":"10.1016/j.jeca.2025.e00426","url":null,"abstract":"<div><div>This study examines the macroeconomic impact of policy uncertainty in climate decision-making. It employs data mining to 23 Portuguese news sources to construct a novel monthly Climate Policy Uncertainty (CPU) series, which is then used in a Structural Vector Autoregression (SVAR) model to analyze its macroeconomic effects. These responses collectively reveal significant economic restructuring in response to climate policy uncertainty. The combination of reduced industrial production and increased unemployment suggests substantial supply-side adjustment costs during the transition. However, the positive stock market response indicates that financial markets view these changes as ultimately beneficial for certain sectors, particularly those aligned with environmental sustainability.</div></div>","PeriodicalId":38259,"journal":{"name":"Journal of Economic Asymmetries","volume":"32 ","pages":"Article e00426"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144312639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abdul Qadeer , Ahmed Imran Hunjra , Mina Sami , Lieven De Moor
{"title":"Portfolio investment analysis and asymmetric shock transmission among green investment, fixed income, and commodity markets","authors":"Abdul Qadeer , Ahmed Imran Hunjra , Mina Sami , Lieven De Moor","doi":"10.1016/j.jeca.2025.e00432","DOIUrl":"10.1016/j.jeca.2025.e00432","url":null,"abstract":"<div><div>This study explores asymmetric volatility transmission and connectedness across green investment, fixed income, and commodity markets using the novel R<sup>2</sup> decomposed DCC-GARCH connectedness measures. We further evaluate the implications of connectedness patterns for portfolio analysis and risk management. We find that bond indices act as dominant transmitters of volatility, while green and commodity indices mostly absorb shocks. The connectedness patterns shift significantly during periods of global stress, which confirms the time-varying and asymmetric nature of volatility across markets. We report that the S&P Global Clean Energy Index shows greater sensitivity to negative shocks and higher volatility during crisis episodes. The portfolio analysis, Sharpe ratios, and downside risk measures consistently favor the FTSE World Government Bond Index, which receives the highest weight allocation. The results support the construction of stable and low risk portfolios by assigning core weight to bonds and cautious exposure to green and commodity sectors. This study provides meaningful implications for portfolio managers and policymakers.</div></div>","PeriodicalId":38259,"journal":{"name":"Journal of Economic Asymmetries","volume":"32 ","pages":"Article e00432"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145568266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}