Gone with the fire: Market reaction to cryptocurrency exchange shutdown

Disruption and shutdown of exchanges frequently happen in the cryptocurrency market, though its potential impacts are relatively under-investigated due to several empirical challenges. This study employs 20-h of service interruption on October 15th at Upbit, the dominant cryptocurrency exchange in Korea, as an exogenous shock to examine the effect of unexpected service interruption at the exchange on cryptocurrency market. Event study estimation using price data from Binance, the largest cryptocurrency exchange globally, shows the sharp and negative reactions to cryptocurrencies mostly traded at Upbit. Major currencies such as Bitcoin and Ethereum also presented limited reactions, implying that service interruption could be interpreted as vulnerability of overall cryptocurrencies.

Stock market reaction to government policy on determining coal selling price

The objectives of this study are to analyze the market response by: (a) examining the consequences of the domestic market obligation (DMO) on coal prices policy on the difference in abnormal return (AR) prior to and after the announcement; (b) determine the effect of DMO policy announcements on coal prices on trading volume activity (TVA). This research examined daily stock returns on the shares of 19 coal companies listed on the Stock Exchange in 2018, ten days before and after the DMO announcement (February 23 to March 23, 2018). Statistical analysis was used to calculate the average abnormal return (AAR) and trading volume activity (TVA). The results showed that the announcement of domestic market obligation (DMO) received a negative response from the market. This study also found that the abnormal return was negative eight days before the DMO announcement. This study also finds the cause of overreaction in the short term, namely a significant price reversal process immediately after the announcement of the DMO. The paired sample t-test found an insignificant difference in abnormal returns after or before the announcement of the DMO on coal prices policy on companies listed on the IDX for the 2018 period. While testing the TVA, a significant difference was found before and after the announcement of the coal DMO selling price policy.

Dividend announcement effect analysis before and during the COVID-19 pandemic in the Indonesia Stock Exchange

The emergence of the SARS-CoV-2 or COVID-19 pandemic has become a challenge for the global society, including the investors in the capital market, due to the uncertainty it has caused. In relation to the phenomenon, this research aimed to examine the impact of COVID-19 pandemic on the dividend announcement effect in Indonesia Stock Exchange by comparing the market volatility around the dividend announcement date of the selected stocks in 2019 and 2020. Implication of dividend increase and decrease as well as stock-risk profiling is also added for further learning. This research used event study methodology as a tool to analyze the data of the 23 sample companies taken from the LQ45 index. The period of analysis is ranged from 10 days before the dividend announcement to 10 days after the dividend announcement date. The study discovered that in 2019, the capital market presented a weak response toward the event, indicated by the inexistence of abnormal return. Moreover, in 2020, the dividend announcement effect caused negative insignificant abnormal returns and the number of companies with low volatility increased, which implies that the stock market is more pessimistic during the pandemic period. Even when the dividend amount increased from the previous period, the market still shows a negative reaction to it in 2020.

The Russia-Saudi Arabia oil price war during the COVID-19 pandemic

The COVID-19 pandemic damaged crude oil markets and amplified the consequences of uncertainty stemming from the Russia-Saudi Arabia oil price war in March-April of 2020. We investigate the impacts of the oil price war on global crude oil markets. By doing so, we use the daily futures and spot prices in three major crude oil markets - West Texas Intermediate, European Brent, and Oman - to perform a systematic analysis of the impacts of the oil price war on them. The event study method, a well-established analytical tool to measure the impacts of a given event on markets, is used in this study. The results indicate that information leakage plays an important role in the impacts of the price war. The outbreak of and truce following the price war have asymmetrical impacts on the markets; negative impacts generated by information leakage during the outbreak are generally more durable than the positive ones it generated during the truce. Furthermore, the magnitude of the impacts on futures markets is negatively correlated with the time-to-maturity of futures. Finally, negative crude oil prices affect West Texas Intermediate crude oil markets the most. Our findings generally show that market participants could perceive and assimilate market changes and adjust their expectations, which restrained the impacts that should have occurred within the oil price war.

COVID-19 pandemic and stock market response: A culture effect

National culture has been shown to impact the way investors, firm managers, and other financial market participants respond to crisis. To date, however, none has looked at the impact of culture on market responses to disasters. This paper is the first to address the effect of national culture on stock market responses to a global health disaster. We find larger declines and greater volatilities for stock markets in countries with lower individualism and higher uncertainty avoidance during the first three weeks after a country's first COVID-19 case announcement. Our results are robust after controlling for investor fear, cumulative infected cases, the stringency of government response policies, the level of democracy, political corruption, and the 2003 SARS experience, among others.

The impact of food safety events on the value of food-related firms: An event study approach

Food safety events threaten not only consumers' health, but also the value of associated firms. While previous studies examined the impact of food safety events on consumer demand for products, little attention has been paid to the impact on the market value of firms. Using the event study method (ESM), this study investigated abnormal returns (ARs) and cumulative abnormal returns (CARs) of firms associated with 40 food safety events over the past 25 years in the U.S. The results of this study demonstrated the magnitude and duration of the impact of food safety events on firm value. Moreover, firm-specific factors (past history and firm size) and situational factor (media attention) were found to influence the magnitude of the impact. This study contributes to the hospitality literature by extending the knowledge of the impact of food safety events and its practical implications for effective crisis management strategies for food-related firms.