Economics
Hoang Thi Du; Nguyen Xuan Tho
Volume 10, Issue 10 , October 2023, , Pages 861-874
Abstract
This study empirically investigated the existence of Calendar effects by using closing daily data for the Vietnam index (VN-index) before and during the Covid-19 pandemic. Daily returns of the VN-Index from 2 January 2018 to 12 August 2022 are used in this study to ascertain calendar anomalies in Ho ...
Read More
This study empirically investigated the existence of Calendar effects by using closing daily data for the Vietnam index (VN-index) before and during the Covid-19 pandemic. Daily returns of the VN-Index from 2 January 2018 to 12 August 2022 are used in this study to ascertain calendar anomalies in Ho Chi Minh Stock Exchange (HOSE). To test these effects, the entire study period is divided into two sub-periods: during and before the Covid-19 crisis. Then, the ordinary least square (OLS) method and the Generalized Autoregressive Conditional Heteroskedasticity [GARCH (1,1)] regression model were employed. The empirical results from the OLS model support the occurrence of calendar anomalies for the HOSE both before and during the Covid-19 pandemic while the results of GARCH (1,1) only confirmed the positively significant effect on Friday during the Covid-19 periods. Regarding stock returns, positive returns were found only on Friday, during the Covid-19 pandemic. It implies that Covid-19 has changed the nature of the stock market from efficient to inefficient. The study’s findings suggest that the Covid-19 crisis significantly impacted the daily returns anomaly in Vietnam’s HOSE.
Rabia Qammar; Rana Zain-Ul-Abidin
Volume 6, Issue 1 , January 2019, , Pages 80-87
Abstract
Price volatility presents the investor possibilities and opportunities to buy securities at cheap prices and then sell it when they are overpriced, resulting in a profit at the end of the day. Recently, the volatility has become more valuable aspect for investors. Investment risk and return is important ...
Read More
Price volatility presents the investor possibilities and opportunities to buy securities at cheap prices and then sell it when they are overpriced, resulting in a profit at the end of the day. Recently, the volatility has become more valuable aspect for investors. Investment risk and return is important for investors. Investors have risk averse nature, they concerned about the information flow of stock price volatility. This study aims to review the literature on stock price volatility significance and its measurements by different methods. This study provides the detail review of stock price volatility different types including historical, implied, intraday, and indices volatility. This study discusses various measurements of stock price volatility forecasting with the empirical findings. Efficient market hypothesis supports the changes in stock prices in prior literature. Some studies shows that volatility can be measured by standard deviation of investor’s stock return. The price volatility mostly determined by high, low and closing prices. It is found that forecasting volatility can be measured by different methods. The literature review suggests that GARCH and Parkinson formula is considered most reliable method to measure volatility. Parkinson is more reliable measurement because it has daily high and low stock prices.
Benjamin Ighodalo Ehikioya
Volume 5, Issue 7 , July 2018, , Pages 498-515
Abstract
This study examines the influence of exchange rate volatility on foreign direct investment flows to the Nigeria economy. The study employs the ARCH, GARCH and EC models to analyze time series data for the period 1970 to 2016. The study established the stationarity of the data series and carried out the ...
Read More
This study examines the influence of exchange rate volatility on foreign direct investment flows to the Nigeria economy. The study employs the ARCH, GARCH and EC models to analyze time series data for the period 1970 to 2016. The study established the stationarity of the data series and carried out the cointegration tests. The result of the study reveals that exchange rate volatility tends to persist throughout the study period. The findings of the study established empirical evidence to support the views that exchange rate volatility has a negative and significant influence on foreign direct investment inflows to Nigeria. The study demonstrates that increase in inflation exerts a negative effect on foreign direct investment inflows to Nigeria. The results of the analysis revealed that trade openness and interest rate have a positive influence on FDI in Nigeria. Thus, it is important for the government to muster the political will with efforts to create a stable environment to boost domestic production of export commodities and investment inflows. In addition, it is imperative for the government through its regulatory agencies to pursue a sound exchange rate regime with good policies and programs that would encourage investments in the economy.
Muhammad Shoaib; Bashir Ahmad Khilji; Zahoor Khan; Muhammad Shafiq
Volume 3, Issue 12 , December 2016, , Pages 779-796
Abstract
This study has been conducted to find out the effect of exchange rate uncertainty on the export volume of Pakistan to its major trading partner countries. Volatility in the nominal exchange rate of Pakistan has been estimated through Generalized Autoregressive Conditional Hetroscedastic (GARCH) process. ...
Read More
This study has been conducted to find out the effect of exchange rate uncertainty on the export volume of Pakistan to its major trading partner countries. Volatility in the nominal exchange rate of Pakistan has been estimated through Generalized Autoregressive Conditional Hetroscedastic (GARCH) process. The findings showed that exchange rate uncertainty has negative significant impact on the volume of exports of Pakistan with all considered trading partner countries. In case of Hong Kong, Kuwait and Malaysia relative prices have negative significant effect on the volume of exports, while for the rest, trading partner countries the relationship is found positive and significant. It is further documented that political instability has significant negative impact on the volume of exports in almost all the trading partner countries. Exchange rate volatility curtails the volume of exports, so appropriate policies are required to be adopted, which will stabilize the exchange rate.
Thales Batiston Marques; Nelson Seixas dos Santos
Volume 3, Issue 10 , October 2016, , Pages 545-571
Abstract
This paper investigates the relation between political news and market returns. To do so we applied a Garch filter to a sample of the main Brazilian stock market index returns (Ibovespa Index) and of short-term interest rates (Selic Over and DI) which ranged from 01/02/2014 to 04/29/2016. Then we looked ...
Read More
This paper investigates the relation between political news and market returns. To do so we applied a Garch filter to a sample of the main Brazilian stock market index returns (Ibovespa Index) and of short-term interest rates (Selic Over and DI) which ranged from 01/02/2014 to 04/29/2016. Then we looked for periods of abnormal volatility which might be associated with political events using a parametric and a nonparametric method. Notwithstanding there were news like important politician been arrested and even speculation about the beginning of an impeachment process, we found relation between abnormal volatilities and political news only in Ibovespa returns during Presidential Elections.
