Previous studies on the efficiency of oiI and gas markets have used monthly, weekly, or daily data. With the fast … evolving, high-speed transaction globalized financial markets; efficiency of markets is better-explored using intraday day. In … this paper, data sampled at 30-minute intervals intraday are used for this purpose. The efficiency and effectiveness of …

Market efficiency is analysed for the Iberian Power Futures Market and other European Power Markets, as well as other …). Enlarged data sets are recommended for stronger test results. Energy markets tend to show limited levels of market efficiency …. Regarding the emerging Iberian Power Futures Market, price efficiency is improved with market development and with further …

We conduct efficiency test using the conventional method in Chordia, Roll, and Subrahmanyam (2005) and the wavelet … order imbalance, it takes about 10 minutes for the market to converge to efficiency, which is shorter than the 30-minute …

The present study examines the relationship between efficiency index of working capital management and efficiency of …), Utilization Index of Working Capital Management (UIWCM), Efficiency Index of Working Capital Management (EIWCM), Cash Conversion … management and cash conversion cycle, the efficiency index was selected as the optimal index related to determining the …