The restrictive measures that have been imposed from March 2020 on business activities in several countries to reduce the spread of the COVID-19 pandemic can be interpreted as shocks to global supply chains. We propose some agent-based models to evaluate the economic effects of different...

The rapid and wide spread of the COVID-19 pandemic has caused severe supply chain disruptions worldwide. The purpose of this study is to investigate the growing literature on the economic impact of COVID-19 on supply chains. We focus on research methodology scholars have employed, especially,...

Given the increased attention of precious metals by investors and the finance literature as well as the growth of high frequency trading, the behaviour of intraday precious metal markets is of great interest and importance. Therefore, this paper examines the stylized facts, correlation and...

This paper provides strong evidence of time-varying return predictability of three precious metals from January 1987 to September 2014. We use three variations of the variance ratio test, the nonlinear BDS test as well as the Hurst exponent to evaluate the time-varying return predictability of...