Coefficient of variation = Standard deviation/Mean, higher the coefficient of variation, higher the variability in the data Note: IVL NAM Spreads over raw material based on 100% PET integration from Ethane

Phatra Securities Plc. for 1Q21 was at 10.84%, continuing to rank 1st from total of 38 brokers. Overall market environment The Thai economy started out at a slow pace in January 2021 due to the resurgence

treatment group. The remaining sample constitutes the control group. Following that, we use entropy balancing to match the mean, variance, and skewness of the observations in the two groups. The regression

substantial resurgence of the COVID-19 pandemic in late 2020 has resulted in a decline in travelling and transportation, despite the holidays and traveling season. Nevertheless, the average selling price of

in biodiesel consumption has not been as predicted as the impact of the substantial resurgence of the COVID-19 pandemic in mid of 2021 has resulted in a decline in travelling and transportation

กลุม่ กราฟแสดงสดัส่วนการลงทุนในปัจจุบนัท่ี Standardized แลว้ Investor types Mean Rank of mean within same investor types Rank of mean across investor types Cash Holder Old- Fashioned Modern Investor Cash

– σ2)]. The Analysis of Hedging Error • The analysis of the hedging error have considered the problem of reducing the deviations or spread of the hedging error. Usually the root mean squared error (RMSE

., 2018; CALISKAN et al., 2020) •Naive Portfolio •Minimizes risk without sacrificing expected returns(Tang, 2003) •Optimal strategy(Bock, 2018;Brown et al., 2013;li, 2018) 6 Background(Cont.) •Mean variance

preventing investors to fall victims for fraudulent solicitations, as well as being a mean of elevating the protection for investors.”The public can use SEC Check First application to search information on

does not necessarily mean 1:1 ratio.