... of cost of capital, this study aims to sermon a significant role of investor’s risk perception as unsystematic risk in PPP-based energy projects. Design/methodology/approach To investigate the effective mechanism of determining cost of capital and valuing the capital budgeting, a pure-play method has...

...Mongi Arfaoui; Aymen Ben Rejeb Purpose This paper aims to investigate the behavior of volatility of Islamic equity indices toward fundamental risk factors. It focuses on the degree and structure of sensitivity to commodity price changes, global risk perception and term premium and whether crises...