حسین عربی

Background: Over the past few decades, the rapid expansion of cross-border e-commerce has reshaped global trade, acting as a key driver of economic transformation. As a crucial aspect of globalization, e-commerce has facilitated the integration of businesses into international markets, reducing geographical barriers and transaction costs while fostering economic development.Aims: The present study aims to examine e-commerce and its role in economic transformation from a business management perspective.Methodology: The research employs a descriptive survey method, with a statistical population comprising all students and graduates in the fields of e-commerce and business management in Bandar Abbas. Using a convenience sampling method, a total of 203 individuals were selected as the study sample. A researcher-developed questionnaire with a reliability coefficient exceeding 0.8 was distributed among the participants. Data analysis was conducted using descriptive and inferential statistical methods, specifically the T-test, through SPSS version 22.Findings: The findings revealed that the T-test statistic for the role of e-commerce in accelerating economic transactions was 73.7, its impact on inflation in the global economy was 54.9, and its contribution to facilitating transactions was 65.5, all statistically significant at a 95% confidence level (P<0.05).Conclusions: E-commerce plays a significant role in enhancing the speed of economic transactions, influencing inflation in the global economy, and facilitating trade from a business management perspective.

This study investigates the impact of global crude oil price fluctuations on the volatility of the Iranian Rial–U.S. Dollar exchange rate over the period November 2011 to August 2025. Using daily data and employing GARCH-family models—including GARCH(1,1), EGARCH(1,1), and GJR-GARCH(1,1,1) under heavy-tailed distributions—we examine whether oil price shocks influence the mean and conditional variance of exchange rate returns. The results indicate that higher oil prices significantly appreciate the Rial, reflecting Iran’s dependence on oil revenues and foreign exchange inflows. Volatility dynamics reveal strong persistence, with shocks exhibiting long memory. Asymmetric effects are also evident: negative oil price shocks increase exchange rate volatility more than positive shocks, highlighting the destabilizing role of downturns in global oil markets. Diagnostic tests confirm the adequacy of the estimated models, with EGARCH and GJR specifications providing the best fit. The findings underscore three key policy implications. First, Iran’s exchange rate remains highly sensitive to oil revenues, reinforcing the need for structural diversification. Second, the persistence of volatility complicates short-term stabilization, demanding long-term reserve and fiscal policies. Third, the asymmetric impact of oil downturns calls for proactive risk management to mitigate volatility in times of declining oil prices. Overall, the study provides new evidence on the oil–exchange rate nexus in an oil-exporting economy, offering lessons for macroeconomic management under external shocks. Robustness checks — including Bai–Perron breakpoint tests and alternative model specifications with event dummies — confirm the main findings.