announcing direct investment in cryptocurrency become more interconnected with bitcoin. Event-study: Abnormal Returns (AR) Market model • 𝐴𝑅𝑖,𝑡 = 𝑅𝑖,𝑡 − 𝛼 − 𝛽𝑖 (𝑅𝑚,𝑡) Cumulative abnormal
, complexity, nature of the business environment, specific circumstances , and industry sector. H1: Number of KAMs is positively associated with cumulative abnormal returns/trading volumes (that is the greater
reductions in tick size. • The general consensus in the literature is that a larger tick size is indeed associated with wider bid-ask spread, while the evidence on trading volume is mixed. Literature review
firms from Singapore and Thai exchanges. • Next, firms sorted into decile groups by price and top decile price range is eliminated. • Assume event firm abnormal returns are independent as RTO occurrence
) crack spread which has consistently decline since the end of 2018 thus the production was reduced to the optimal level. Furthermore, during the quarter the refinery identified an abnormal condition in
the auditor not understanding the transaction recording system through the use of journal vouchers. In addition, an auditor did not separate journal vouchers into normal and abnormal transactions and
December 2018. The major increase item is raw material which is result from the strategic buy of raw material under the abnormal market situation in last year. Unit : Million Baht 31 Mar 2019 31 Dec 2018
shifted their investments from money and bond markets to equity market; 3. US subprime crisis: Its effect started to spread to global stock markets in June and the situation got worse when several financial
has loss on cost of goods sold because the declining of raw material price and abnormal loss in manufacturing process. 2. Cost of Refining Service in the 2nd quarter of 2015, and 2014 cost of sale was
declining of raw material price and abnormal loss in manufacturing process. 2. Cost of Refining Service in the 2nd quarter of 2015, and 2014 cost of sale was THB 8.03 million and THB 18.97 million, with ratio