This paper examines the efficiency of Indian Stock Markets (NSE) during time COVID. It demonstrates impact on market announcement two major events that is declaration COVID as a Public Health Emergency Of International Concern (PHEIC) 30th January 2019 and day when Prime Minister Narendera Modi declared first lockdown in India, 24th March 2019. The study uses Event Study methodology to determin...

The presence of stock market efficiency is a distinctive characteristic of the effectively functioning market economy. Investigation of the market efficiency of seven emerging East-European stock exchanges is carried out as their major stock indices (BELEX15, BET, CROBEX, ISE100, PFTS, RTSI, SOFIX) are studied in respect of long-range dependence (LRD), persistency, and forecasting possibili...

The Efficient Coding Hypothesis, suggests that sensory relays recode sensory messages, so that their redundancy is reduced, but little information is lost. Coding to reduce redundancy eliminates wasteful neural activity, and also organizes sensory information such than an internal model of the environment causing the past sensory inputs to built up, while the current sensory situation is repres...

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